-
-
XuZhou Ruili new material Co.,Ltd
Main: Polyimide tape, copper foil tape, PET high temperature tape, double-sided tape, etc
-
TEL:
15995817817
Main: Polyimide tape, copper foil tape, PET high temperature tape, double-sided tape, etc
15995817817
RUILI TAPE
XuZhou Ruili new material Co.,Ltd.was established in China Xuzhou Zone in 2024.We are able to provide services of R&D,OEM,ODM and procession services forour customers. We produce a wide variety of adhesive tapes, including Polyimide tape, Copper foil tape, PET High-Temperature Tape, Double-sided tape, and more. Our factory is equipped with five advanced coating production lines, imported separators, rewinders, cutoff machines, and comprehensive testing equipment. The workshop is clean and orderly, with the coating and cutting processes carried out in a dust-free environment. The manufacturing process strictly adheres to a quality control system. All our products comply with RoHS standards and have been approved by ***, Reach, and UL. Our tape product have been widely recognized and trusted by users.We warmly welcome all of your inquiriesHigh temperature tape: basic knowledge, common types and differences
High temperature tape usually refers to adhesive materials that can maintain good adhesion under certain high temperature environments, mainly including single-sided tape and double-sided tape. These tapes have a wide range of applications in the manufacturing of industrial electronic products, and their high temperature resistance is mainly manifested in their ability to maintain stability under temperature conditions between 120 degrees and 260 degrees. The temperature resistance of high-temperature adhesive tape mainly depends on the properties of its substrate and adhesive. Several common high-temperature adhesive tapes on the market currently include PET polyester film substrate coated acrylic adhesive, PET polyester film coated high-temperature silicone adhesive, PI polyimide film coated acrylic adhesive, PI polyimide film coated high-temperature silicone adhesive, and PTFE tape. These high-temperature tapes have different temperature resistance properties,PET polyester film substrate coated with acrylic adhesive, available in transparent, brown (gold finger), green, black, and other colors. This material generally has a long-term temperature resistance of between 130-150 degrees and a short-term temperature resistance of up to 180 degrees (within half an hour).PET based polyester film coated with high-temperature silicone, available in transparent, brown (gold finger), green (commonly known as green silicone), black, and other colors. This material can withstand temperatures between 150-180 degrees Celsius for a long time and up to 220 degrees Celsius for a short period of time (within half an hour).PI substrate polyimide film coated with acrylic adhesive, with colors including brown (real gold finger), black, white, and so on. This material can withstand temperatures between 180-230 degrees Celsius for a long time and up to 280 degrees Celsius for a short period of time (within half an hour).PI substrate polyimide film coated with high-temperature silicone, with colors including brown (true golden finger), black, and so on. This material can withstand temperatures between 220-260 degrees Celsius for a long time and up to 300 degrees Celsius for a short period of time (within half an hour).Teflon tape (also called Teflon tape) is a kind of high temperature resistant tape, which is made of glass fiber as the base cloth, coated with Teflon lotion, dried, and then coated with silica gel twice. This material can withstand temperatures of 260-300 degrees Celsius for a long time and up to 350 degrees Celsius for a short period of time (within half an hour). Among these high-temperature tapes, the one coated with PI polyimide film and high-temperature silicone is considered to have the best comprehensive performance. Whether in terms of temperature resistance, dielectric performance, processability, or chemical resistance, PI silicone high-temperature tape is the most excellent one.Understand one article! Detailed explanation of polyimide high-temperature tape
High temperature tape is a type of adhesive tape mainly used in the electronics industry for use in high-temperature working environments. High temperature tape includes KAPTON high-temperature tape, PTFE high-temperature tape, high-temperature textured paper tape, PET green high-temperature tape; High temperature double-sided tape, etc. Today, the editor will focus on introducing KAPTON high-temperature tape, also known as polyimide tape. Polyimide tape Also known as KAPTON tape, gold finger tape, PI tape, it is made by coating a polyimide film substrate with high-temperature resistant adhesive. There are two types of materials: single-sided fluoroplastic release material composite or non composite. Material characteristics Polyimide tape has excellent insulation, durability, acid and alkali resistance, and temperature resistance. It can usually be used between 120 degrees and 260 degrees, and 180 degrees can be used for a long time. Excellent high-temperature electrical performance, high insulation, high temperature resistance, low temperature resistance, acid and alkali resistance, low electrolysis, good mechanical properties, wear resistance, tear resistance, special adhesive treatment, strong adhesion, leaving no residue on the covered surface after tearing. The product specification is 33M long, and the color of the tape is usually brown or golden yellow. The commonly used widths are 10mm, 15mm, 20mm, 25mm, etc. (can be customized). High precision coating up to ± 2.5um, no scratches, wire drawing or other phenomena, good shear performance, easy to punch die cutting processing. Material parameters: Substrate thickness: 0.0125mm-0.125mm Adhesive thickness: 0.025mm-0.065mm Adhesive composition: Silicone/Acrylic Adhesive strength: 450-720g/25mm Temperature resistance -10 ℃ -300 ℃ Tensile strength 14-18kg/mm Elongation rate 55% -85% Corrosion resistance: 1.0H Electrical strength: 6000V~7200V Application area Coatings: Used as insulation paint for electromagnetic wires or as high-temperature resistant coatings. Advanced composite materials: used for aerospace, aircraft, and rocket components. It is one of the most heat-resistant structural materials. Fiber: Its elastic modulus is second only to carbon fiber, and it is used as a filtering material for high-temperature media and radioactive substances, as well as bulletproof and fireproof fabrics. Foam plastic: used as high temperature resistant and heat insulating material. Engineering plastics: There are thermosetting and thermoplastic types, and thermoplastic types can be molded by compression molding, injection molding, or transfer molding. Mainly used for self-lubricating, sealing, insulation, and structural materials. Separation membrane: used for the separation of various gases, such as hydrogen/nitrogen, nitrogen/oxygen, carbon dioxide/nitrogen, or methane, to remove moisture from air hydrocarbon feed gases and alcohols. It can also be used as a pervaporation membrane and ultrafiltration membrane. Photoresist: Some polyimides can also be used as photoresists. There are negative and positive adhesives, and the resolution can reach sub micron level. When combined with pigments or dyes, it can be used for color filter films, greatly simplifying the processing steps. Application in microelectronic devices: used as a dielectric layer for interlayer insulation, and as a buffer layer to reduce stress and improve yield. As a protective layer, it can reduce the impact of the environment on the device and also act as a shield for alpha particles, reducing or eliminating soft errors in the device. Polyimide, an alignment agent used in liquid crystal displays, plays a very important role in the materials of TN-LCD, SHN-LCD, TFT-LCD, and future ferroelectric liquid crystal displays.Electro optical materials: used as passive or active waveguide materials, optical switch materials, etc. Fluorinated polyimides are transparent in the communication wavelength range, and using polyimide as a chromophore matrix can improve the stability of the material. Moisture sensitive materials: The principle of linear expansion due to moisture absorption can be used to make humidity sensors. Storage method 1. Tape should be stored in the warehouse to avoid direct sunlight and rain; Do not come into contact with acidic, alkaline, oil or organic solvents, keep clean and dry, and keep a distance of 1 meter from the discovery device. The room temperature should be between -15 ℃ and 40 ℃. 2. The tape should be placed in rolls without folding. If stored for too long, it should be flipped once every season. 3. It is best to use a crane when loading and unloading the conveyor belt, and use rigging with crossbeams to lift it steadily to avoid damaging the edge of the belt. Do not load or unload recklessly, which may cause loose rolls and loose sleeves. 4. The type and specifications of the tape should be selected reasonably according to the usage needs and specific conditions. 5. Do not connect tapes of different varieties, specifications, strength, and fabric layers together for use. 6. It is best to use hot vulcanized rubber joints for conveyor belt joints to improve reliability and maintain high effective strength. 7. The diameter of the conveyor roller and the minimum pulley diameter of the conveyor belt should comply with relevant regulations. 8. Do not make the tape snake or crawl. Keep the rollers flexible and the tension moderate. 9. When the conveyor is equipped with baffles and cleaning devices, wear and tear on the tape should be avoided. 10. Cleanliness is a basic condition for the good operation of adhesive tape. Foreign substances can affect tape eccentricity, tension differences, and even breakage. 11. When early damage to the tape is found during use, the cause should be promptly identified and repaired to avoid adverse consequences.Quality requirementThe quality of polyimide tape is very important. Have you ever learned about the quality requirements of polyimide tape? Let me take a look.1、The adhesion of polyimide tape should be long-lasting and should not dry out after a period of time;2. When tearing off the polyimide high-temperature tape, it should be able to be completely removed;3. When removed after completion, the polyimide tape should not have any residue or images;4. After long-term bonding of polyimide tape, there should be no bubbles floating or curled edges;5. Polyimide tape must have weather resistance when used outdoors; 6. Polyimide tape must not have crystal dots.The way to distinguishAt present, there are many manufacturers of polyimide tape on the market, and the product quality is also uneven. Is there any way to identify the authenticity of polyimide tape? Now, the editor will bring you a method to identify authenticity.1、Looking at the appearance, generally speaking, low-quality high-temperature tape has a slightly dull color, while high-quality gold finger high-temperature tape has a relatively good surface gloss.2. Look at the residue after ignition, bake with a lighter for 1 to 2 seconds, and then touch with your hand. The high-temperature tape of the golden finger really won’t stick to your hands.3. In actual high-temperature testing, after passing through a high temperature of 260 ° C, check for residual glue, shrinkage, and other phenomena, because the temperature resistance of real gold finger high-temperature tape is usually between 120 ° C and 260 ° C.Polyamide Sheet Polyimide Film Heater Polyimide Film Suppliers
Polymide film is a kind of special plastic film, flat and smooth, no crease, no particular air bubble and no pinhole, with excellent mechanical properties, dielectric properties, long-term working temperature-195 degree to 280 degree, widely used in sophisticated products in appliance, statellite navigation, digital product, electric motors, computer, mobile phone and so on, such as the base dielectrics in flexible printed circuits (FPC), tape automated bonding (TAB), pressure sensitive tape (PST), and insulation for electric motor(Insulation). It has excellent electrical insulation properties, mechanical properties, excellent temperature resistance, resistance to Radiation, chemical stability and flame retardancy and etc. it is widely used for wire insulation wrapping and coil insulation binding of largeindustrial motors, traction motors, and generators.Definition of Polyimide Industry
The polyimide (PI) industry is an industrial chain system centered around polyimide materials, covering their research and development, production, processing, and application. Polyimide is a high-performance polymer material known as the “golden polymer material” due to its extreme high temperature resistance, chemical stability, mechanical strength, and electrical insulation properties. It is widely used in high-precision fields such as electronics, aerospace, and new energy. Core elements of industry definition*** * Material characteristics**-Molecular structure: The main chain contains repeated imide rings (- CO-NR-CO -), which endow it with high thermal stability and rigidity.-* * Performance label * *: High temperature resistance (long-term use temperature>250 ℃), radiation resistance, corrosion resistance, low dielectric constant (suitable for high-frequency scenarios), high mechanical strength.* * Composition of the industrial chain**-Upstream: Raw material suppliers (such as diamines, dianhydride monomers, such as ODA, PMDA, etc.).-* * Middle stream * : manufacturing of polyimide resin, film, fiber, foam and other forms. – * Downstream * *: Terminal applications in electronics, aerospace, automotive, new energy, military industry, etc.* * Product Form**-* * Thin film * * (such as flexible circuit substrate, insulation tape);-Resin (high-temperature resistant coating, adhesive);-* * Fiber * * (fireproof clothing, high-temperature filter material);-* * foam * * (spacecraft thermal insulation material). Industry Development Status**High technical barriers**-The synthesis process is complex (requiring high-temperature condensation and imidization), and the purity requirements for raw materials are extremely high (such as monomer ODA, PMDA).-High end products such as transparent polyimide and ultra-thin films are monopolized by American and Japanese companies such as DuPont, Ube Industries, and Zhongyuan Chemical.* * Market demand driven**-* * Electronic field * : 5G communication, flexible display (foldable screen phones), chip packaging (PI photoresist). – * New energy * *: lithium battery separator, fuel cell proton exchange membrane.-Aerospace: Lightweight high-temperature components (engine hood, satellite thermal control film). Industry Development Trends*** * Domestic substitution acceleration**-Policy support (Guidelines for the Development of New Materials Industry) promotes the research and development of high-end PI materials and reduces dependence on imports.* * Expansion of Emerging Applications**-* * Flexible Electronics * *: Foldable devices, flexible sensors;-New energy vehicles: motor insulation system, battery thermal management;-Semiconductor: Advanced packaging with PI photoresist.* * Greening and low-cost**-Develop bio based monomers (to reduce petroleum dependence) and optimize synthesis processes (low-temperature solution method). Industry Challenges** -Raw material monopoly: Key monomers (such as PMDA) are controlled by Japanese companies such as Ube and Mitsubishi; -* * Equipment limitations * *: High end film production relies on imported equipment (such as biaxial stretching machines); -Environmental pressure: Traditional processes using toxic solvents (such as DMAC) require a transition to green processes. * * Summary** The polyimide industry is a typical high-tech barrier and high value-added new material field, and its development level directly reflects a country’s competitiveness in high-end manufacturing and cutting-edge technology fields. In the future, industry growth will rely on * * technological breakthroughs * * (monomer synthesis, process optimization), * * industry chain collaboration * * (upstream and downstream support), and * * application scenario innovation * * (such as deep space exploration, artificial intelligence hardware).PTFE/FEP/F46 Adhesive Polyimide Tape Film
he film preparation method is as follows: polyamide acid solution flow forming film, stretching, high temperature imide.Thin film is yellow transparent, relative density 1.39 ~ 1.45, has outstanding high temperature resistance, radiation resistance, chemical corrosion resistance and electrical insulation properties, can be used in 250 ~ 280ºC air for a long time.The vitrification temperatures are 280ºC(Upilex R), 385ºC(Kapton) and above 500ºC (Upilex S), respectively.The tensile strength is 200MPa at 20ºC and greater than 100MPa at 200ºC.It is especially suitable for flexible printed circuit board base material and insulation material of various high temperature resistant electric motor.The characteristics and applications of the brown high-temperature tape commonly seen on production lines
Polyimide film (PI) tape is a high-performance high-temperature tape made from polyimide film as the tape material. Its main uses are heat-resistant shielding and heat-resistant insulation for electronic boards.Due to the high thermal decomposition temperature of polyimide, it has excellent heat resistance and insulation performance. Many polyimide tape products use silicone adhesives, which have the advantage of leaving no residue even after being removed. Polyimide (PI) film tape not only features high-temperature resistance, chemical corrosion resistance, good insulation, and super strong adhesion, but also possesses other excellent properties such as radiation resistance, flame retardancy, wear resistance, and anti-corrosion. Polyimide (PI) tape can be classified into two types based on the adhesive used: PI silicone tape and PI acrylic tape. In terms of appearance, it is generally available in two colors: brown and black. Product Features:High temperature resistance: Polyimide film tape has good high temperature resistance and can withstand temperatures up to 400 ℃.Chemical corrosion resistance: Polyimide film tape is not easily corroded by chemical substances and has strong corrosion resistance.Good insulation: Polyimide film tape has excellent insulation performance and can effectively protect electrical equipment.Super strong adhesion: Polyimide film tape has strong adhesion and can firmly fix objects without deformation or damage at high temperatures.Anti corrosion: Polyimide film tape has excellent anti-corrosion performance, which can prevent rusting of metal materials such as steel.Product application:PI silicone tape is mainly used for applications that require high temperature resistance or high initial adhesion, such as insulation wrapping of H-grade motor and transformer coils, fixing and wrapping of high temperature resistant coil ends, thermal resistance protection for thermometers, insulation for capacitors and wire entanglement and other bonding under high temperature working conditions, temperature protection for PCB sheet metal fingers and electronic components during SMT, external wrapping of polymer lithium batteries, etc.PI acrylic tape is commonly used for insulation protection of PCB boards, fixing and wrapping of wire harnesses, interlayer and outer wrapping of transformer coils, external insulation of lithium batteries, etc.Characteristics of PolyimidePolyimide is a general term for polymer compounds polymerized by imide bonds, but the material used for polyimide tape is aromatic polyimide, which is made of aromatic compounds polymerized by imide bonds.Due to its strong adhesive strength, it has high strength, heat resistance, and insulation properties. The thermal decomposition temperature exceeds 500 ℃.The specific characteristics of the molecular structure that endow it with excellent heat resistance are as follows:Aromatic compounds have conjugated structures through imide bonds.Due to the aromatic rings being located on the same plane, the molecular chains are tightly packed together.Highly polar imide bonds have strong intermolecular forces.In addition, the coefficient of expansion during heating is relatively low, so even when used at high temperatures, it will not expand too much, thereby reducing dimensional errors.Application of High Temperature Resistant Green Tape in Circuit Board Industry
The green tape PET material is a relatively common film on the market at present. In fact, the plastic Coke bottles we usually see are made of PET material, also known as Baote bottles. The chemical name is polyester film. The PET material film is characterized by relatively high texture. It is hard, scratch-resistant, and it will not turn yellow and grease like PVC material after long-term use. However, generally PET film is adsorbed by static electricity, which is relatively * foaming and falling off, but even if it falls off, it can be washed in clean water. It can be reused, and the price of PET film is much more expensive than PVC film. PET Green High Temperature Spray Tape High Temperature Resistant Green Tape PET Green High Temperature Spray Tape High Temperature Resistant Green Tape Supply of PET Green High Temperature Tape High Temperature Spray Protective Tape Green High Temperature Spray Tape (PCB Protection High Temperature Resistance) PET Double Sided Adhesive Acid and Alkali Resistant Tape High Temperature Resistant Tape No. SMY-206 Green tape Substrate PET thickness (um) 70 Tension kgf/mm > 10 Stripping force gf/in 750 Temperature resistance ° c 180-230 PCB protection, high temperature resistance, easy to pull off treatment. It is used to cover the gold finger during the immersion process of the circuit board, prevent the electroplating solution from being immersed and polluted, protect the circuit board electroplating, high temperature resistant paint and powder spraying industries. Features: This product has high temperature resistance, good chemical solvent resistance, High adhesion, softness and no residue when torn off. High temperature resistance, solvent resistance, flame resistance, insulation and high heat dissipation, PC board shields gold fingers and printed circuit boards through tin furnacesApplication of High Temperature Belt in Electronic Field
High temperature resistant tape manufacturer specializes in producing shockproof, cushioning, insulation, conductive, adhesive, sound insulation and other materials die-cut punching type (PORON foam, EPDM foam, CR foam, EVA foam, fast bar paper, green shell paper, mica sheet, KAPTON, PC, PET Myra sheet, dust-proof mesh, silica gel, rubber, conductive cloth, conductive foam, conductive sponge, copper foil, aluminum foil, 3M double-sided adhesive, SONY double-sided adhesive, TESA double-sided adhesive; High temperature resistant tape manufacturer. Die-cutting and punching processing and sales of KAPTON gold tape, Mala tape, acetate cloth tape, conductive cloth tape, double-sided tape and other industrial tape comprehensive service company; The customer base covers electronics, electrical appliances, audio, digital, communications, plastics, hardware, toys, craft gifts, packaging and many other industries and fields.Golden finger high-temperature tape, also known as Kapton tape or polyimide tape
It is a high-performance adhesive tape made of polyimide film as the substrate, coated with high-performance organic silicon pressure-sensitive adhesive on one side, and composite or non composite with single-sided fluoroplastic release material.Performance characteristicsA. High temperature resistance: Long term working temperature can reach 260 ℃, and short-term processing can be carried out below 300 ℃. It can still maintain good performance in high temperature environments without problems such as delamination, residual glue, and substrate deformation B. Chemical resistance: It has excellent solvent resistance and good resistance to chemicals such as acids, bases, and salts. It can be used normally in a certain degree of chemical corrosion environment. C. Electrical insulation: With excellent dielectric performance and good electrical insulation effect, it can be used for insulation wrapping and protection in electronic devices, effectively preventing problems such as circuit short circuit and leakage. D. Mechanical properties: High mechanical strength, high tensile strength, good flexibility and ductility, can tightly adhere to various shaped surfaces, including flat, curved, and complex irregular surfaces. E. No residual adhesive: Imported silicone pressure-sensitive adhesive is used as the adhesive, and there is no residual adhesive left after the tape is torn off, avoiding contamination and damage to the surface of the object being pastedClassificationAccording to different applications, gold finger high-temperature tape can be divided into gold finger double-sided tape, anti-static gold finger tape, composite gold finger tape, and SMT gold finger tape, etcSpecificationsA. Width: Common widths include 10mm, 15mm, 20mm, 25mm, etc., and can also be customized according to customer needs, ranging from a few millimeters to tens of centimetersB. Thickness: Common thicknesses include 50U, 75U, 100U, etc., and the thickness can also be adjusted as neededC. Length: Generally, each roll is 33 meters long and can also be customizedColor: Usually brown or golden yellow, but can also be customized into other colors according to customer requirements, such as coffee, black, white, etc.Application FieldsA. Electronic and electrical industry: used for insulation wrapping of H-class motors and transformer coils with high requirements, fixing of high-temperature resistant coil ends, thermal resistance protection for temperature measurement, entanglement of capacitors and wires, and other adhesive insulation under high temperature working conditionsB. Circuit board manufacturing industry: suitable for electronic protection pasting, especially for SMT temperature protection, electronic switches, PCB board metal finger protection, electronic transformers, relays and other electronic components that require high temperature resistance and moisture-proof protectionC. Metal processing industry: used for high-temperature spray painting and sandblasting coating of metal materials to shield surface protection. After high-temperature spray painting and baking, it is easy to peel off without leaving residual adhesive.D. Other fields: In the aerospace industry, it is used for sealing, fixing, and fire-resistant protection in high-temperature environments such as aircraft and rockets; In the automotive industry, it can be used for sealing and protecting high-temperature components such as engines, transmissions, and braking systems; In the medical equipment industry, it can be used for sealing and protection of high-temperature sterilizers.Storage conditionsIt should be stored in an environment with 10-30 ℃ and relative humidity of 40-70%, avoiding direct sunlight and high temperature (above 40 ℃) and high humidity (75% RH). The storage period is generally 6 months.Ceramic backing tape fireproof self-adhesive tape
Ceramic backing tape "is a broad term that encompasses a variety of products. According to the core application scenarios, it can be mainly divided into two categories: welding special gaskets and high-temperature resistant insulation/fireproof tapes.👉 Welding Ceramic backing tapeThis is the most common term for "ceramic backing tape", mainly used for single-sided welding and double-sided forming processes.Core working principle: During welding, it is attached to the back of the weld seam to support the molten metal, prevent it from dripping, ensure that the root of the weld seam is completely melted, and achieve one-time molding and aesthetic appearance of the back. Essentially, it is a process auxiliary material for single-sided welding and double-sided forming.Main application areas: shipbuilding (hull outer panels, decks), bridge construction, boiler and pressure vessel manufacturing, steel structure construction, pipeline engineering, etc.Material composition: It is mainly composed of natural inorganic materials such as alpha alumina (α - Al ₂ O3) and kaolin, which are sintered at high temperatures of 1350-1400 ℃. Some products are pasted on aluminum foil tape for construction purposes.Performance characteristics:High temperature resistance: The fire resistance usually exceeds 1300 ℃, and some materials can withstand high temperatures above 1500 ℃.Chemical stability: resistant to acid, alkali, and chemical corrosion, will not react with the molten metal during welding, ensuring the purity of the weld seam.Good thermal stability: With a low coefficient of thermal expansion, it can effectively resist the thermal shock of rapid heating and cooling.🛡️ High temperature resistant insulation/fireproof tapeThis type of tape is not designed for welding processes, but utilizes the fire-resistant, insulating, and heat-insulating properties of ceramic materials to provide protection for equipment or places.Main types:Ceramic Fiber Tape: Woven from ceramic fiber yarn, used as insulation, sealing, and insulation material in high-temperature areas, such as pipe wrapping, furnace door sealing, etc.Ceramic Silicone Tape: Soft and elastic at room temperature, it will quickly sinter into a hard ceramic shaped protective shell when exposed to high temperatures (such as fire), providing fire and fire-resistant effects. The fire-resistant layer commonly used for fire-resistant cables.Main application areas:Sealing and insulation of high-temperature pipelines, flanges, valves, and furnace doors.Fire prevention, fire resistance, and insulation wrapping of wires and cables.Pads and isolation protection for high-temperature areas of equipment.Glass fixed sealing for fire doors.Performance characteristics:High temperature resistance: Ceramic fiber tape can withstand high temperatures of about 1260 ℃; Ceramic silicone rubber tape can form a protective shell under flames.Electrical insulation: These products, especially ceramic fibers and ceramicized silicone rubber tapes, typically have excellent electrical insulation properties.Chemical corrosion resistance: able to resist the erosion of most chemicals and solventsHow to choose and use?Clarify core requirements: First, determine whether you want to solve welding process problems or require high-temperature sealing or fire prevention.Precise product selection: Choose corresponding products according to different needs.Verify key parameters: Carefully verify the product's temperature resistance level, size specifications, and certification (such as CCS/ABS certification from classification societies).Pay attention to construction details:For adhesive welding pads, ensure a tight fit and avoid air bubbles.Ceramic fiber products can usually be cut with ordinary scissors. Some products should be noted that slight smoking or blackening may occur during the first high-temperature heating, which is a normal phenomenon.For pressure-sensitive ceramic tape, additional mechanical fastening may be required when the application temperature exceeds approximately 204 ° C (400 ° F)Die casting demolding anti scratch and high temperature protection PTFE tape
PTFE tape is indeed a fairly mature industrial solution for the challenges you encounter in demolding, workpiece scratches, and high-temperature environments during die-casting processes.It essentially combines the non stick properties of polytetrafluoroethylene (PTFE) with the convenience of adhesive tape, forming a smooth and high-temperature resistant "physical barrier" directly on the surface of the mold.🔑 Core Performance: Why is it capable?The reason why it is suitable for die-casting demolding mainly depends on the following performance:Excellent high temperature resistance: This is a basic requirement. High quality PTFE tape can be continuously used in the temperature range of -70 ℃ to+260 ℃, and some products can withstand high temperatures of up to 300 ℃ in the short term, which can stably cope with the high heat environment during the die-casting process.Smooth and extremely low friction coefficient: Its surface is very smooth and almost does not adhere to any substances (such as molten plastic, resin, etc.), ensuring smooth demolding of castings and effectively avoiding scratches.Excellent mechanical strength and durability:Scratch resistant: Teflon itself has a certain degree of hardness and wear resistance, but the mechanical strength of the tape depends more on its substrate.For die-casting scenarios, it is recommended to choose reinforced adhesive tape based on glass fiber (commonly known as "fiberglass cloth base"), which has high tensile strength and can better resist the impact of molten metal flow and the wear of mold closure, thereby achieving reusability and reducing maintenance costs.Widely resistant to chemical corrosion: It is almost not corroded by any strong acid, strong alkali, or organic solvent, and can adapt to various release agents or oil stains that may exist in the die-casting environment.Cleanliness and residue free: After high-quality silicone pressure-sensitive adhesive is peeled off at high temperatures, the back of the tape will not leave stubborn residue on the surface of the mold being bonded, which helps to keep the mold clean.High insulation performance: Teflon tape also has excellent electrical insulation performance, with some models having a breakdown voltage of up to 25KV, providing additional protection in scenarios that require electrical isolationSelection and usage suggestionsTo select the most suitable adhesive tape for your die-casting process, you can focus on the following aspects:Clear usage requirementsTemperature and pressure: Confirm the working temperature and pressure that the mold is subjected to.Wear resistance requirements: Based on the mold structure and working conditions, evaluate the requirements for the wear resistance of the tape, and decide whether to choose pure PTFE film (with good flexibility, suitable for complex surfaces) or fiberglass cloth based reinforced type (with high strength and more wear resistance).Thickness and size: Select the appropriate thickness (such as 0.08mm, 0.13mm, 0.25mm, etc.) based on the precision requirements of the mold, and confirm whether a specific width or customized shape is needed.Focus on key parametersMaximum operating temperature: Ensure that the upper temperature limit of the tape is higher than your process temperature.Tensile strength: This is particularly important for fiberglass cloth tape, as it directly affects its durability.Adhesive strength: The peeling force on steel is one of the key indicators, for example, 3M 5498 has a peeling force of about 22-48N/100mm on steel.Thickness range: The thicker the thickness, the better the strength and durability.Proper installation and maintenanceThoroughly clean: Before pasting, be sure to thoroughly clean the surface of the mold with a suitable solvent (such as acetone) to ensure that there are no oil stains or impurities, in order to ensure optimal adhesion.Smooth pasting: When pasting, avoid generating bubbles and use a scraper to smooth from the center to the edges.Regular inspection: Regularly check the wear of the tape during production intervals. Once serious scratches or peeling are found on the surface, it should be replaced in a timely manner.Easy replacement: After tearing off the old tape, if there is any residue, it can be removed with alcohol or a special cleaning agent, and then a new tape can be reattached.There are many manufacturers and brands on the market that supply PTFE tape. We suggest that you evaluate from these perspectives in order to find the most suitable "invisible protector" for your die-casting conditions.Friction resistant PTFE high-temperature cloth tape mold compression protection
Friction resistant PTFE high-temperature cloth tape is an industrial tape that combines the excellent non adhesiveness of PTFE with the high strength of glass fiber cloth. It is designed specifically for anti sticking, insulation, and wear resistance requirements in high temperature, high pressure, and high wear environments.It is commonly referred to as PTFE high-temperature tape or PTFE fiberglass tape, made by coating PTFE on fiberglass cloth. Compared with ordinary PTFE film tape, its core characteristics emphasize more on mechanical strength and wear resistance.Core technical parametersFor your convenience in evaluation, the following are the key performance indicators and common specifications of this type of tape:Characteristic Typical Parameters/Specification DescriptionLong term temperature resistance: -70 ℃ to 260 ℃Short term: can reach 280 ℃ -300 ℃ and maintain stability in a wide temperature range, suitable for high temperature conditions.Wear resistant composite glass fiber cloth with high tensile strength (such as 900 N/100mm) is the outstanding advantage of this type of tape. Fiberglass base fabric provides excellent mechanical strength and tear resistance, making it more durable in friction and scratch environments.The extremely low friction coefficient of 0.05-0.1 gives it excellent "non stick" properties, which can effectively prevent material adhesion and assist in sliding.Excellent anti adhesion performance, PTFE coating surface hardly adheres to any substances, including glue, resin, oil stains, etc., making it easy to clean.Excellent corrosion resistance, able to resist corrosion from strong acids, strong bases, and various organic solvents, with high chemical stability.High electrical insulation and dielectric constant<2.6 can be applied in scenarios that require electrical insulation protection.The conventional thickness of 0.08mm to 0.5mm is a key parameter affecting wear resistance and service life, which can be selected according to the application mon colors: brown, black, white, blueOther features include fire resistance, flame retardancy, UV protection, and anti-static. Some products also have these additional functions to adapt to more special environments.Main application areasBased on its characteristics of wear resistance, high temperature resistance, and anti sticking, it is mainly applied in the following scenarios:Packaging and heat sealing industry: used for hot pressing sealing end faces of bag making machines and sealing machines to prevent the packaging film from melting and sticking to the heating block, ensuring sealing quality and production efficiency.Industrial rollers and drying drums: Covering the surface of drying drums in papermaking, printing and dyeing, bonding and other equipment to prevent material adhesion and protect the drum surface from wear and tear.Electronic and electrical insulation: As an H-grade (above 180 ℃) temperature resistant insulation material, it is used for wrapping and insulation protection of coils and cables.Thermoplastic mold demolding: The liner is placed on the mold or heating plate as a demolding medium, making it easy for the formed plastic or composite products to detach without the need for demolding agents.Chemical anti-corrosion lining: used as an anti-corrosion and wear-resistant lining for chemical pipelines, reaction vessels, hoppers and other equipment to protect the equipment substrate.Aerospace: Can be used as a liner for aerospace molds to meet the high temperature and high-precision demolding requirements.Main brands and market reference pricesThere are multiple brands in the market that offer this type of product, and the following are reference information from several mainstream manufacturers:Typical brand models/series reference prices (example) Remarks3M 3M ™ PTFE 5451 and 5453 are internationally renowned brands with high prices (usually measured by roll), stable performance, and offer a variety of width and length specifications.Tesa (tesa) tesa ® 4800 is a high-performance adhesive tape designed by Desha specifically for demolding applications, with a relatively high price (usually calculated by roll), emphasizing mechanical stability and wear resistance.NITTO (Nitto) No.903UL, No.973UL approximately ¥ 143/roll (10m long) is a Japanese brand with a high market share and a rich product line, offering a variety of widths and thicknesses to choose from.Domestic manufacturers such as Qiaorui, Giant Adhesive Tape, and SKF offer high cost-effectiveness at around ¥ 10-35 per roll (10m in length) and flexible customization of specifications, making them widely used in the domestic industrial market.Summary: Friction resistant PTFE high-temperature cloth tape is an industrial tape that integrates multiple properties such as high temperature resistance, wear resistance, anti sticking, and insulation. It is an effective solution to solve the problems of material adhesion and wear under high temperature conditionsThermal anti adhesive protective film
Thermal anti adhesive protective film is a functional thin film material that can significantly reduce or even eliminate its viscosity by heating, thereby achieving no residual adhesive and no damage peeling.Its core lies in a "thermal response" mechanism. Simply put, before heating, it can provide sufficient adhesion to fix and protect the workpiece, just like a regular protective film; After the process is completed, simply heat it to a specific temperature, and the viscosity will sharply decrease (from a few hundred grams of adhesive force to negligible), making it easy and clean to peel off.1、 Core principle: Two mainstream technological routesThere are two main technologies for achieving this "thermal anti sticking" effect, which are currently applied in the market:Foaming type: using microsphere expansion to break the bondThe adhesive layer of this protective film is dispersed with tiny thermal expansion microspheres. After heating, the microspheres rapidly expand and increase in volume, disrupting the continuity of the adhesive layer and causing a sharp decrease in the contact area between the adhesive layer and the surface of the object being adhered, resulting in loss of adhesion.Key indicators: Heating expansion to lose viscosity usually takes only 10 seconds to 5 minutes, depending on the heating temperature and the formula design of the protective film.Peeling effect: It can achieve "automatic peeling", that is, after heating, the adhesive film will automatically arch or fall off from the surface of the workpiece due to the loss of viscosity, greatly improving efficiency.Material phase change type: using special polymer materialsThis is a relatively new technology that does not use foaming agents. It is achieved by adding a specific proportion of liquid crystal material (such as 5% -15% of the total weight) to the acrylic resin adhesive chanism of action: At room temperature, the liquid crystal molecules in the adhesive layer maintain an ordered state, providing high viscosity; After heating, the liquid crystal molecular structure undergoes a thermally induced phase transition, breaking the molecular arrangement of the adhesive and resulting in a significant decrease in its macroscopic adhesion.Advantage: This design can avoid the residual glue problem that may exist in traditional heat reducing films and improve the reliability of peeling.2、 Key characteristics and important parametersWhen choosing a thermal anti adhesive protective film, the main focus is on the following core parameters:Typical numerical range of parameters/explanation of impact and selection suggestionsPeel off temperature low temperature: 90-100 ° CMedium temperature: 120-130 ° CHigh temperature: The core indicator selected is 140-180 ° C. It must be higher than the process temperature during processing, but it cannot be too high to avoid damaging the workpiece that is not heat-resistant.Initial viscosity low viscosity (~200g/25mm)Medium viscosity (~400g/25mm)High viscosity (~700-1500g/25mm) is selected based on the weight of the workpiece and fixing requirements. Excessive adhesion may cause difficulty in peeling off after processing, while insufficient adhesion may prevent firm fixation.After heating, the viscosity usually drops to<10g/25mm, or even lower to 0.02N/20mm, which is the key to evaluating the difficulty of peeling. The smaller the value, the easier the peeling and the lower the risk of damage to the workpiece.The common substrate and thickness are PET (polyester film), as well as high-temperature resistant materials such as PI. The total thickness is usually between 50 μ m and 115 μ m. PET has good comprehensive performance and low cost; PI has better heat resistance. Thickness affects flexibility and strength, and needs to be adapted to the surface and processing method of the workpiece.The core advantage of this product is to have no residual adhesive after peeling, but the compatibility between the product and specific materials needs to be verified in application.3、 Main application areasThanks to its heating and anti sticking properties, thermal anti sticking protective films are widely used in precision manufacturing fields that require temporary fixation and protection, especially in the electronics industry:Semiconductors and Microelectronics: Used for fixing and protecting the backside grinding and cutting process of chip wafers. After cutting, heating can easily pick up individual chips (grains) from the tape without damaging the chips or leaving adhesive residue.Passive component manufacturing: used for cutting, positioning, and handling in the manufacturing process of small components such as MLCC (Multi Layer Ceramic Capacitor) and MLCI (Chip Inductor).Optoelectronics and flat panel displays: used for protection during the thinning, grinding, and polishing processes of LCD/TP touch panel glass.New material processing: used as a temporary carrier and protective layer in the transfer printing process of materials such as graphene and carbon nanotubes.Other applications: including but not limited to cutting and grinding of LED chips, precision metal component processing, ceramic substrate cutting, etcBright black (matte black) polyester film
Bright black (matte black) polyester film is a common functional PET film in industry, characterized by excellent light shielding and mechanical and electrical insulation properties. The choice of two surfaces mainly depends on the different requirements of the application scenario for light parison of core featuresCharacteristics: Bright black polyester film, matte black polyester filmMain features: The surface is bright and smooth, with strong reflectivity, visually more eye-catching. The surface has a fine sand texture, low glossiness, and can reduce light reflectionHigh and extremely low glossiness (some products may have glossiness as low as 2.5%)Wear resistance/scratch resistance is relatively easy to develop. Some high-quality products will be strengthened by special treatment, which is usually better than the bright facial mask. Tiny scratches are not easy to detect and are more resistant to fingerprintsBoth have excellent shading performance, which can block the majority of light. Some professional grade products have a light transmittance of less than 1%, even reaching 100% full shadingMain performanceRegardless of whether the surface is glossy or matte, this type of film has the following general properties:Electrical insulation: With high dielectric strength, it is an ideal electrical insulation material.High temperature resistance and dimensional stability: It has good temperature resistance, low thermal shrinkage, and can maintain flatness even in high-temperature processing or use environments.High physical strength: possessing high tensile strength and impact resistance.Chemical stability: It has good adhesion to various inks, silicone oils, and coatings, and is resistant to acid and alkali corrosion without fading.Main application areasBased on the above characteristics, its application covers multiple industrial fields:Electronics and Electrical: Light shielding, insulation, and fixation of LCD/LED backlights, mobile phones, and other electronic devices; Insulation outsourcing and inter slot insulation for various transformers, motors, and coils; Used for insulation reinforcement and solder mask of flexible circuit boards (FPC).Acoustics and Optics: Sound and vibration membranes used in electroacoustic equipment such as speakers, headphones, and microphones; As a shading film inside cameras and optical instruments, it absorbs stray light and improves imaging quality.Industry and packaging: used for blister packaging and surface decoration of high demand products; As a substrate for industrial tape (such as shading tape); Panel for membrane switches and nameplatesTranslucent red PET polyester film
Translucent red PET polyester film (commonly known as red film, red PET) is a PET film produced by precisely adding red masterbatch to give it a specific color and transparency during the PET raw film production process. Due to its excellent physical properties and attractive semi transparent red appearance, it is widely used in many fields such as packaging, electronics, advertising signage, etc.✨ Core FeaturesOn the basis of semi transparent effect, the red PET film also combines the excellent properties of PET material itself:Bright appearance: The color and transparency can be customized, and common colors include bright red, Chinese red, rose red, pink, prehensive performance: Excellent insulation, heat resistance, and cold resistance, suitable for use in extreme environments ranging from -100 ℃ to+200 ℃. High tensile strength and toughness, not easily broken. Chemical stability, oil and drug resistance, good airtightness and fragrance retention.📏 Conventional specificationsThese types of products are usually distinguished by "thickness" and "color", and the following are common specification parameters:Common specifications and parameter notes for the projectThe thickness ranges from 25 μ m to 250 μ m (1 μ m=0.001mm), with the most common being 25 μ m to 125 μ m, which can be customized within a wider range according to requirements.Width 1000mm -1300mm is the most common, other widths can be customized.Chinese red, rose red, and bright red are the mainstream choices, and can also be customized according to the color chart provided by the customer.🧭 Main application areasThe application of semi transparent red PET is very extensive, and some typical application scenarios include:Electronics industry: As a release film, it is used for backlight die-cutting, mobile phone/digital product die-cutting, etc., or as a substrate for flexible circuit boards in PCB (printed circuit board) | FPCB (flexible circuit board) manufacturing.Packaging field: used for the outer packaging of electronic components, cosmetics, small appliances, toys and other products, using the eye-catching effect of red to enhance product value.Die cutting and tape: used as a substrate for double-sided tape, high-temperature tape, or made into red PET protective film for surface protection of products such as mobile phones and glass.Advertising printing: used as a material for printing posters, hang tags, and labels, with high color saturation. Its semi transparent properties can also be used as a photography filter to adjust the red color tone of dical industry: Due to its high contrast, it is used to manufacture sterile packaging for medical devices, such as surgical knives, implants, etc., to clearly label the opened status and reduce operational errors.Automotive industry: Used as a car light film to provide higher visibility in low light and foggy conditions.📊 Key Performance ReferenceAccording to the data provided by the manufacturer, the key physical performance reference values for this type of film are as follows:Typical values/performance notes for performance projectsThe temperature range of -100 ℃ to+200 ℃ can maintain stable physical properties within this range.The transmittance is about 10%. Taking a thickness of 50 μ m as an example, it visually presents a semi transparent effect.Tensile strength ≥ 140 MPa, high strength, not easy to break, ensuring durability in various processing and use.Heat shrinkage rate ≤ 0.6% (150 ℃, 30min), good dimensional stability, and not easily deformed after heating.Surface treatment can be customized and coated with corona, single-sided/double-sided anti-static coating according to customer needs.💡 Procurement precautionsClear requirements: Prioritize selecting experienced manufacturers and clearly explain your requirements for color, transparency, thickness, width, and length to them.Cost assessment: The product price is generally related to the order quantity (minimum order quantity), specifications, and surface treatment process (such as anti-static). For example, a red PET film with a thickness of 0.05mm-0.125mm has a reference price of approximately 2.5 yuan per square meter. If priced in kilograms, the reference price is about 18 yuan/KG. It is recommended to request samples from multiple suppliers for comparison.Seeking customization: Most factories accept customization. Products with different light transmittance, customized color codes, anti-static treatment, or special widths and lengths can be requestedGlass cloth tape stuck with silicone adhesive, unable to be peeled off
Using glass cloth tape to stick silicone rubber, common application scenarios include using it as an auxiliary material in FPC (flexible printed circuit board) lamination process, or fixing and protecting silicone components in high temperature environments.Here is a detailed operation guide, hoping to be helpful to you:✍️ preparation in advanceSurface cleaning: This is the most crucial first step. Please use a dry cloth, brush, or dipped in alcohol, acetone, or other cleaning agents to thoroughly remove dust, oil, and impurities from the silicone rubber and the surface of the object being pasted, to ensure a firm adhesion and avoid moisture affecting electronic products during cleaning.Material cutting: Cut the glass cloth tape and silicone rubber into suitable shapes and sizes according to actual needs.📝 Paste core stepsPositioning and pasting: Due to the strong initial adhesion of the glass cloth tape, it is difficult to adjust once it is pasted, so it is necessary to accurately paste it all at once after determining the position. Use the "direct bonding method" to attach the tape to the silicone rubber, and repeatedly press the tape with force to fully utilize the adhesive layer, ensuring no bubbles and tight pression and static placement: In specific processes such as FPC compression, hot pressing is usually required after bonding. Accurate control of parameters such as pressure, temperature, and time is required. After completing the operation, it is best to let it stand for 24 hours to achieve the best bonding strength of the tape, and try to avoid applying external forces to the bonding area during this period.Surface protection and inspection: After pasting, if there is glue overflow, it can be carefully cleaned with a blade. The final step is to carefully check whether the adhesive surface is smooth and free of impurities such as bubbles and particles, to ensure the quality of the bonding.Here are several typical application scenarios that can be referred to:💡 Application scenario referenceFPC hot pressing process: The glass cloth tape is attached to the silicone rubber, which plays a role in buffering, preventing displacement, blocking adhesive overflow, and filling uneven lines during pressing.High temperature equipment fixation: Utilizing its wide temperature resistance range of -40 ℃ to 260 ℃, it is used for sealing, sandblasting protection, coil binding, etc. of high-temperature pipelines.Adhesive of silicone related products: Some special tapes (such as Japan's IPROS G-301 and Desha's 61526) can directly adhere silicone or perform heterogeneous bonding between silicone and other materials.Temporary protection and fixation: used to shield and protect specific parts of precision electronics or household appliances during painting, welding, and other processes, with no residual adhesive after removalFlexible high-temperature epoxy adhesive film for copper-clad laminates
The specialized flexible high-temperature epoxy adhesive film for copper-clad laminates is a key basic material, mainly used to manufacture flexible printed circuit boards (FPCs). It is essentially a conductive adhesive film that has been specially modified to have both flexibility and high temperature resistance.Core technology: Using "toughening" to solve the problem of "brittleness"After curing, pure epoxy resin becomes brittle and has poor fatigue resistance, so it needs to be modified by physical or chemical methods for "toughening". This is the core technology that gives it flexibility. Common modification methods include:Rubber toughening: This is the most common method. By adding toughening agents such as carboxyl terminated nitrile rubber (CTBN) to epoxy resin, its toughness and peel strength can be significantly improved. Research has shown that when 30 parts of CTBN are added to epoxy adhesive, the impact strength of the modified film can be increased by nearly 149.7%.Chemical modification: Introducing chemical groups such as bismaleimide copolymer (BMI) can effectively increase the flexibility of the adhesive film without sacrificing heat resistance.Key performance indicatorsTo evaluate the performance of this adhesive film, the following three indicators should be considered:High peel strength: ensures that the copper foil will not peel off during subsequent processing (such as PCB "subtractive process" etching) of the copper-clad laminate. It is usually required that its peel strength be greater than 1 kgf/cm, but through modification, the peel strength of the adhesive film can reach up to 2.67 N/mm.Flexibility: This is a characteristic brought about by the aforementioned toughening modification, ensuring that it can adapt to various bending scenarios.High temperature resistance: In the lead-free reflow soldering process at 288-320 ℃, there should be no blistering or delamination of the adhesive film to ensure the reliability of the FPC.Application scenarios: From consumer electronics to specialty industriesThe core application of this adhesive film is the production of flexible copper-clad laminates (FCCL). According to different preparation processes, it can be further divided into:The 3-layer FCCL method, which uses adhesive to bond polyimide (PI) film and copper foil, is currently the most widely used process.2-Layer FCCL: does not rely on adhesives, requires higher technology and cost, but also has superior performance, commonly used in high-end products. Some technologically advanced enterprises already have the ability to mass produce such materials.Specific application areas include:Specific application field descriptionHigh density and high reliability flexible circuit boards for consumer electronics products such as smartphones, tablets, and digital cameras.Electronic components that require rigorous environmental testing in special industrial aerospace, military, and high-end medical equipment.Industry chain related enterprisesApplication and R&D: Domestic enterprises such as Shengyi Technology are important manufacturers of flexible copper-clad laminates. Meanwhile, many universities and research institutions are also conducting in-depth research in this field.Equipment and process: Its production process is also crucial. For example, Associate Professor Li Huilu's team at Xi'an University of Science and Technology innovatively uses solvent-free method to produce high thermal conductivity insulation film, which solves the environmental problems caused by traditional solvent evaporation and is applied to high thermal conductivity circuit boardsLOGO sandblasting special heat release protective film
At present, there is no standard product on the market specifically named "LOGO sandblasting special heat release protective film". However, your needs can be met through two mainstream solutions: one is liquid anti sandblasting ink, and the other is solid thermal release protective film. They each have their own emphasis on craftsmanship, precision, and effectiveness.🎨 Solution 1: Anti sandblasting ink - high-precision logo solutionIf your core requirement is to create high-precision logo patterns, then anti sandblasting ink would be a more precise choice. This method is widely used in scenarios such as high gloss LOGO processing on mobile phone metal frames and aluminum alloy product surfaces.Working principle: A hard protective layer is formed on the surface of the substrate through screen printing, exposure development, or spray coating processes. This layer of ink can withstand the impact of sandblasting, protect the areas that need to be preserved, and achieve precise etching of logos or patterns.Core advantage: High precision, photosensitive development ink can achieve a resolution of 20 μ m, fully meeting the production needs of fine logos. The curing time of UV curable ink is only 5 seconds, suitable for large-scale production.Removal method: After sandblasting, it can be soaked in dilute alkali solution (such as 5% NaOH solution) or mechanically peeled off without leaving any residue.Key parameters: Impact resistance of approximately 0.2-0.5MPa; The ink film layer has high elasticity and sand resistance.Supplier reference: Shenzhen Wanjia Yuan Fine Chemical Technology Co., Ltd. is one of the suppliers of this type of ink.🛡️ Option 2: Thermal anti sticking protective film - convenient overall protectionIf considering the use of solid film, it is mainly used for masking and temporary fixation before sandblasting, rather than directly as logo ink. For example, sticking a logo masking film on aluminum alloy products before sandblasting is a typical application.Working principle: Maintain viscosity at room temperature, used to protect or fix workpieces. After processing, by heating to a specific temperature (such as 100 ° C to 180 ° C), its viscosity will sharply decrease (foaming peeling), making it easy to remove.Core advantage: No residual glue is its most prominent advantage, and it will not contaminate the surface of the protected object after heating and peeling. Easy to use, can be peeled off after processing.Key parameters: The conventional adhesion force is relatively high at room temperature and decreases to about 0.02N/20mm after foaming; The peeling time usually ranges from 10 seconds to 5 minutes.In addition to thermal anti adhesive protective films, traditional sandblasting protective films (such as PVC materials) used for sandblasting protection are also widely used, especially for large-area protection.🔩 Key Process and Structural AnalysisComparison of core processes:Anti sandblasting ink process: cleaning → silk screen printing/spraying ink → curing (UV or hot air) → sandblasting → peeling.Protective film process: cleaning → film application (cold/hot pressing) → sandblasting → heating peeling.The structure of sandblasting protective film is usually a three-layer composite structure, including the surface layer, middle layer, and adhesive layer. For example, a common structure is: PVC film+gelatin (water-based adhesive)+release paperMLCC upper/lower tape coated with silver tape
In the production of MLCC (Multi Layer Ceramic Capacitors), the "upper/lower tape" and "silver dipping tape" you asked about are two completely different specialized tapes that play important roles in packaging, transportation, and electrode manufacturing, respectively.📦 Cover/Base TapeThis type of tape is mainly used for packaging and transportation of electronic components. They are used in conjunction with paper carriers to securely seal small components such as MLCC in the grooves of the carrier for accurate picking on automated surface mount machines.Core requirement: To prevent tiny MLCC from being electrostatically broken down, this type of tape usually needs to undergo anti-static treatment. At the same time, they also need to have stable peeling force (pulling force) to ensure that they can be smoothly peeled off on the automatic mounting machine without leaving irregular tear marks.Main suppliers: Major players in the industry include Japan's Mattei Group, Jiemei Technology, and some professional manufacturers such as Taicang Qunte Electrical Materials.🎨 Silver Termination TapeThis type of tape is used in the "sealing" process of MLCC manufacturing to protect the ceramic body parts that do not require sizing. Due to the need to be exposed to high temperatures, it has high requirements for heat resistance.Working principle: When silver paste (or copper paste) is applied to the end of MLCC to form an external electrode, this tape tightly wraps around the rest of the capacitor, providing shielding and protection. Subsequently, the components with adhesive tape will enter a high-temperature oven or sintering furnace for processing.Core technical requirements:High temperature resistance: This is the most critical characteristic. After high-temperature treatment at 200 ° C to 260 ° C, the performance of the tape must remain stable and cannot deform or melt.No residual adhesive: When peeled off after the process is completed, it must be 100% residue free. Any residual adhesive will affect the performance or appearance of MLCC.Flexible and snug: The tape needs to be able to tightly adhere to the tiny surface of MLCC, providing reliable shielding for subsequent electroplating, sintering, and other processes.Main suppliers: The main suppliers in the market include Shenzhen Yizhong Technology Co., Ltd., Dongguan Xinpengda Adhesive Products Co., Ltd., Haojia Enterprise Co., Ltd., Shenzhen Youtu Technology, etc.⚙️ New choice in technology: thermal foaming tapeIn the "silver dipping" process, in addition to traditional silver dipping tape, a more advanced thermal foaming tape is becoming popular.Traditional silver coated adhesive tape needs to be manually or mechanically removed after protection, while thermal foam tape utilizes its own characteristics to rapidly expand in volume at specific high temperatures (about 190-210 ° C), thereby automatically and completely eliminating the stickiness and achieving automatic unloading of components. This characteristic makes it more suitable for high-precision automated production and can effectively avoid the physical damage that traditional tape may cause to fragile ceramic bodies or electrodes when torn off, especially when dealing with small-sized MLCCs
