Question and answer-XuZhou Ruili new material Co.,Ltd

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 conditions

Flexible 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 boards

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.

Tea-colored high-temperature resistant gold finger tape

Draping precision manufacturing in golden armor: Ruili's high-temperature resistant gold finger tape in brown, safeguarding the "lifeline" of PCBsIn the high-speed electronic manufacturing workshop, every printed circuit board (PCB) carries the essence of technology and the pulse of the future. The row of golden contacts on the board, known as "gold fingers," are the lifelines for connecting signals and transmitting data. Any contamination, scratch, or solder intrusion during high-temperature soldering can lead to the failure of the entire module or even the end product.How to provide unbreakable protection for the delicate "gold finger" in this ultimate test of precision manufacturing? **Ruili Tape, with craftsmanship, presents to you - brown high-temperature resistant gold finger tape, your most trusted precision protection expert.The seemingly ordinary brown color is actually a precisely protected "golden eye"The classic brown color we chose is not a random decision. It originates from the natural color of the top-grade polyimide (PI) substrate we selected.This material is inherently endowed with extraordinary genes:Extreme temperature resistance, as stable as Mount Taishan: In harsh high-temperature environments such as wave soldering and reflow soldering at up to 280°C, Ruili gold finger tape will not melt, shrink, or deform, always fitting tightly and building a stable protective barrier for the gold finger.Excellent insulation, foolproof: With superior electrical insulation performance, it effectively prevents the risk of short circuits during soldering, ensuring the purity and safety of the circuit board.Core technology: seamless removal is the real skillThe significance of protection lies in withdrawing when the job is done. Many adhesive tapes, after being subjected to high-temperature "baking" tests, leave behind stubborn residue that contaminates gold fingers, causing poor contact and becoming the culprit that "does more harm than good".Ruili Tape is well aware of this drawback, and we have adopted a top-tier synthetic silicone adhesive system, achieving:High temperature without residue: Even after being removed under extreme heat, the gold finger surface remains as smooth and clean as new, leaving no traces, perfectly ensuring conductivity.The viscosity is just right: high initial adhesion, ensuring firm attachment and preventing warping; strong holding power, preventing displacement throughout the entire processing process; and moderate peeling force, facilitating operation and enhancing production efficiency.Flexible and tough, capable of handling complex working conditionsThe components on the PCB board are uneven, so the gold finger tape needs to have excellent flexibility and puncture resistance. The strong and tough base material of Ruili's brown gold finger tape is not easy to tear when fitting uneven surfaces, effectively resisting accidental scratches and impacts on the production line, providing comprehensive physical protection.Rilink Goldfinger Tape: Born for Efficient ManufacturingPrecision masking: It is not only suitable for gold fingers, but also for solder pads, connectors, and other areas requiring precise masking.Improve yield: fundamentally eliminate scrap and rework caused by gold finger contamination, significantly increase product pass rate, and save costs.Wide application: From consumer electronics, communication equipment to automotive electronics and industrial control, all fields involving precision welding are the stage for Ruili Tape to show its skills.Choosing Ruili is choosing peace of mind and trust.We are fully aware that on the production line where every minute counts, any minor mistake can cause huge losses. Therefore, we integrate our strict demands for quality into the manufacturing of every roll of Ruili's high-temperature resistant gold finger tape in brown color. What we provide is not just a product, but also a solemn commitment to the quality of your products.Let every protection be precise and accurate, and every detachment be clean and swift.Ruili Tape - Dedicated Protection, Where Value Lies.Contact Ruili Tape immediately to obtain samples and customized solutions, and let us escort your precision manufacturing!Precise positioning: closely addressing the core pain point of "protecting the lifeline of PCBs".Highlighted selling points: Clearly elaborates on three core advantages: "tea-colored PI substrate", "high temperature resistance up to 280℃", and "no residual silicone".Embodying value: Transforming product features into customer value (improving yield and saving costs).Establish brand image: conveys the brand tone of "professionalism, reliability, and craftsmanship".Call to action: Encourage customers to take action and request samples at the end.

Lithium battery tape

Lithium battery tape is a special tape used in the production and assembly process of lithium batteries, which plays a key role in ensuring battery performance and safety.🔎 What are the main types of lithium battery tape?There are various types of lithium battery tape, each designed for specific application scenarios and performance requirements:Main application key characteristics of the typeTerminate the tape fixation and protect the end of the battery cell to prevent short circuit, electrolyte resistance, high electrical insulation, strong adhesion, and no residue after peeling offHigh temperature tape is used for processes that require high temperature resistance, such as high-temperature shielding during ear welding, high temperature resistance (PI tape can reach 260 ℃ or above), solvent resistance, corrosion resistance, and electrical insulationWrap, insulate, and protect the positive and negative electrode ear connections with adhesive tape, which is resistant to electrolyte and has excellent heat sealing performance with metal tape and aluminum-plastic film, and is leak proofExpansion tape fixes the core, absorbs external impact forces, and enhances battery safety. It can significantly expand when exposed to electrolyte (up to three times the original thickness in volume), resist impact, and has strong fixationProtective film/blue film covers and protects the battery cells and module shells, providing insulation, wear resistance, puncture resistance, wear resistance, and high adhesionFixing/bundling tape is used to secure multiple battery cells or wiring harnesses during the module/PACK stage. It has high strength (such as fiber tape), high adhesion, good weather resistance, and anti warping performanceEasy to pull adhesive temporarily fixes components such as batteries, making it easy to remove high viscosity, high tensile strength, removable, and residue free adhesive during repair or recycling🛠️ How does tape work from battery cells to modules?Lithium battery tape plays an important role in multiple stages of battery manufacturing.🔋 Internal and external insulation protection of battery cellsWinding fixation: In the battery cell winding process, use termination tape to fix the end to prevent the battery cell from loosening.Ear insulation: After ear welding, wrap the weld seam with ear tape for insulation protection.Internal component protection: Expansion tape is used to absorb external impacts and stabilize the core position.Shell protection: After the square or soft pack battery cells are packaged, a protective film (blue film) will be coated on their surface to provide basic insulation and wear-resistant protection for the battery cells.📦 Battery module and PACK assemblyCell fixing: During module assembly, multiple cells need to be firmly fixed together, and high-strength fiber tape is used for bundling.Insulation and thermal insulation: Insulation or thermal insulation sheets are pasted between battery cells and module casings, and fixed with double-sided tape (such as Desha's flame-retardant double-sided tape).Temporary fixation: Easy to pull glue is often used to temporarily fix components during assembly. Due to its characteristics, it can be removed by stretching when needed, leaving no residue and making it easy to repair and recycle.🧪 Performance core: electrolyte resistance, temperature resistance, insulation and environmental standardsChemical Resistance: The electrolyte inside the battery is highly corrosive, and ordinary tape cannot withstand it. Lithium battery tape must be able to resist long-term immersion of electrolyte, maintain viscosity, not dissolve, and not contaminate the battery.Temperature Resistance: Temperature resistance includes two aspects: one is to adapt to the temperature environment during battery operation, for example, some adhesive tapes used in power batteries need to withstand high temperatures of 125 ℃ for a long time; The second is the high-temperature resistance process in battery manufacturing, such as polyimide (PI) tape, which can withstand temperatures above 260 ℃ for a short period of time and is used for ear welding protection.Electrical Insulation: This is the most basic safety requirement. The tape must have a high dielectric breakdown voltage, effectively isolate current, and prevent internal short circuits. For example, a tape from Desha has a breakdown voltage of up to 14400V, ensuring safety in high voltage environments.Environmental and safety standards: Many tapes comply with environmental directives such as RoHS and halogen-free. In the field of power batteries, it is also required that the tape itself has flame retardancy to comply with relevant safety regulations.Adhesion&Removability: Adhesive tape needs to have suitable adhesion to firmly fix it, but in some applications such as "easy to pull glue", it is also required to be easily peeled off without residue when it needs to be removed, making it easy to repair and recycle✅ How to choose the appropriate lithium battery tape?Clarify application scenarios: Firstly, determine whether the tape is used inside the battery cell or during the battery PACK assembly stage. The core requirements for the tape vary greatly in different scenarios.Focus on core performance: Depending on the application scenario, focus on key indicators such as electrolyte resistance, temperature resistance, electrical insulation strength, and flame retardant rating.Adaptive manufacturing process: The tape needs to adapt to the high-speed automated production line of batteries. Its physical properties such as thickness, viscosity, and stretchability can affect the efficiency and yield of equipment attachment.Confirm environmental and safety compliance: Ensure that the tape meets environmental requirements such as RoHS and halogen-free, and complies with flame retardant safety standards related to power batteries.Assessing supplier capabilities: It is recommended to choose suppliers with systematic certification (such as ISO 9001) and independent research and development capabilities, which can better ensure product quality and supply stability

Glass 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 removal

Polytetrafluoroethylene (PTFE) tape

Polytetrafluoroethylene tape, also known as Teflon tape or Teflon tape, is a high-performance industrial tape based on polytetrafluoroethylene (PTFE). It plays an indispensable role in many professional fields due to its excellent high and low temperature resistance, corrosion resistance, anti sticking, and insulation properties.Core FeaturesHigh and low temperature resistance: It is one of its most outstanding properties, which can work stably for a long time in the temperature range of -70 ° C to+260 ° C. Some high-quality products can even withstand high temperatures of up to 300 ° C for a short time, and the performance is very stable.Excellent anti adhesion: The surface friction is extremely low, with a friction coefficient of only 0.05-0.1. Almost all substances (such as hot melt adhesive, resin, paint, etc.) are difficult to adhere to its surface, making it an ideal anti sticking and demolding material.Chemical corrosion resistance: The chemical properties are very stable and can almost withstand the corrosion of all known strong acids (such as aqua regia), strong bases, and organic solvents. It is an ideal choice for harsh environments such as chemical engineering and laboratories.Excellent electrical insulation: It has high insulation strength and dielectric strength, and can be used in demanding electronic and electrical fields to provide insulation, shielding, and protection.Non toxic safety: Teflon material is non-toxic, insoluble, and meets food safety requirements. It can be directly used in processing equipment that comes into contact with food, such as sealing machines.Reusable: Due to its excellent anti adhesive properties, the tape will not leave any residue on the surface after removal, so it can be reused multiple times according to specific application situations.Main CategoriesThe polytetrafluoroethylene tapes on the market are mainly divided into the following categories based on their reinforcing materials and specific forms:Main characteristics and applications of tape typesThe fabric reinforced type uses glass fiber cloth as the substrate, impregnated with PTFE, and combines the anti sticking properties of PTFE with the high strength and low elongation of glass fiber cloth. Suitable for scenarios that require high strength and dimensional stability, such as heat seals for packaging machinery, conveyor belt guides, laminating machine covers, etc.Pure PTFE film tape is made of PTFE pure film, with a softer texture and better adhesion. More suitable for surfaces with complex shapes, such as insulation wrapping and coil winding for wires and cables.Raw material tape is a microporous PTFE film without backing adhesive, which relies on its own extensibility and winding force to achieve sealing. An indispensable sealing material in pipeline installation, used to seal threaded connection parts of water pipes, gas pipes, pneumatic joints, etc.application fieldWith its unique performance combination, polytetrafluoroethylene tape has a wide range of applications, mainly including:Industrial Manufacturing and ThermoformingHot sealing machine: This is one of the most common applications. Applying tape to the heat seal of the sealing machine can effectively prevent plastic film or aluminum foil from melting and sticking at high temperatures, ensuring a smooth and beautiful sealing effect. It is a key component to ensure the stable operation of packaging equipment.Injection molding and mold demolding: affixed to the surface of injection molding and rubber vulcanization molds, it serves as a permanent demolding layer, greatly reducing the use of demolding agents and improving production efficiency and yield.Roller and guide wheel coating: applied to various types of guide rollers, transmission wheels, and sliding plates that require anti sticking, forming a smooth and low friction surface to prevent materials (such as films, paper, fabrics) from slipping or sticking.Electronic and electrical industryUsed in the manufacturing of high-frequency cables and transformers, it plays an excellent role in electrical insulation and high temperature protection. Especially in radio frequency (RF) cables that require low dielectric constant, using PTFE film tape wrapping can significantly reduce signal attenuation.It is also commonly used for insulation protection of heating elements such as air vents of hot air guns and hair dryers.Pipeline and SealingUsually referring to the "raw material strip" type, it is an essential material for plumbers and maintenance technicians, used to seal threaded connections of various pipelines such as water pipes, gas pipes, radiators, etc., effectively and reliably preventing leaks.Aerospace and Special FieldsIn the aerospace field, it can be used for high-temperature resistant wire and cable bundling, as a chemical barrier for protection, and as a release layer for composite material bonding.In laboratory settings, connecting pipelines are used to seal precision equipment such as gas chromatography and microfluidicsPrecautions for useSafety reminder: Be alert to the existence of "non-standard" products in the market, whose materials and performance may not meet the standards. Especially in safety related scenarios such as gas pipelines, it is necessary to choose large brand products that comply with national standards (GB/T 2792, etc.) to ensure the reliability of the seal.Surface cleaning: In order to achieve the best bonding effect, it is necessary to ensure that the surface to be bonded is clean, dry, and free of oil stains before applying the tape.Pasting technique: Use appropriate tension for pasting, and ensure that the tape is completely attached to the surface to avoid bubbles or wrinkles.summaryOverall, polytetrafluoroethylene tape is an excellent 'problem solver', playing a crucial role in ensuring smooth operation of industrial production lines and leak proof sealing of household water pipes. When choosing, the key is to clarify one's core needs - whether it is high temperature resistance, anti sticking, or insulation - and then match the appropriate type and brand based on these characteristics.

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)

Thermal 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, etc

Plasma thermal spraying tape

1. What is it?Plasma spraying tape is a high-temperature masking tape. Its main function is to protect specific areas on the workpiece that do not need to be covered by the coating during plasma spraying.You can think of it as the ordinary tape and newspaper we use when painting, but it is specially designed to withstand extreme high-temperature environments.2. Main purposes and functionsSelective spraying: Ensure that the coating is only deposited on the designated functional areas of the workpiece, guaranteeing the precision and consistency of the spraying process.Protect precision parts: Protect threaded holes, bearing positions, mating surfaces, sealing surfaces, etc., to prevent coating materials from adhering to them and affecting the assembly and function of the workpiece.Form clear boundaries: At the junction where gradient coatings or different coatings are required, form neat and sharp boundary lines.3. Key features (why it is special)Due to the characteristics of plasma spraying, this tape must possess the following properties:Extremely high temperature resistance: The center temperature of the plasma jet can reach up to 10,000°C or higher. Although the surface temperature of the workpiece is controlled to be much lower, the tape still needs to withstand high temperatures ranging from 400°C to 600°C or even higher for short periods of time.Excellent ablation resistance: The adhesive and substrate of the tape cannot melt, drip, burn, or produce residues that are difficult to remove at high temperatures.Easy and clean peeling: After spraying, the tape should be easily and cleanly peeled off without leaving any residual adhesive on the surface of the workpiece. This is a key indicator to measure its quality.Good fit: It can closely adhere to surfaces with various complex shapes and roughness, preventing coating particles from infiltrating from the edges.Sufficient mechanical strength: capable of withstanding the impact of high-speed particle streams during the spraying process without being punctured or torn.Prevent spraying on the back side: Protect the side of the workpiece facing away from the spray gun from being affected by oversprayed powder.4. Common types and materialsSubstrate:Aluminum foil tape: the most common type. It utilizes the reflectivity of aluminum foil to reflect some of the heat and provides good protection and shielding effects. It usually comes with a high-temperature silicone adhesive.Glass cloth tape: made of glass fiber cloth as the substrate, coated with high-temperature silicone rubber, featuring good flexibility and high strength.Polyimide tape (also known as gold finger tape): It exhibits excellent high-temperature resistance and insulation properties, but its cost is relatively high.Adhesives: Most commonly, silicone resin adhesives are used because they maintain their viscosity at high temperatures and leave minimal residue.5. Usage ProcessSurface preparation: Clean the surface of the workpiece to ensure it is free of oil stains and dust.Shielding: According to the requirements of the engineering drawings, accurately apply high-temperature tape to the areas that need protection. For large-area protection, high-temperature shields or coatings are usually used in conjunction.Spraying: Conduct plasma spraying operations.Cooling and Peeling: After the workpiece has cooled down, carefully remove the tape. Ideally, the tape should be removed completely, leaving the protected area as smooth and pristine as before.Summary: Plasma spraying tape is an indispensable consumable in plasma spraying technology. Although it does not directly participate in the formation of the coating, it plays a crucial role in ensuring the quality, precision, and pass rate of the final product. Choosing the right tape is as important as selecting the correct spraying powder and parameters.

Question and answer

What is high temperature tape used for?

Common Types and Differences of High Temperature Belt

Application Fields of Polyimide

How do you choose the right high-temperature resistant tape for your industry?

Polyimide series

Glass cloth tape (Teflon)

PET high-temperature tape (protective film)

Plasma thermal spraying tape

Fire-resistant ceramicized silicone tape

Domestic products replace imported adhesive tapes