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

Die-cutting and processing of double-sided adhesive tape

Die cutting is the process of cutting double-sided tape (or other roll like materials) into specific shapes and sizes through precision molds according to design requirements. This is a crucial post-processing step in industries such as electronics, automotive, medical, and home appliances.Below is a detailed analysis of the die-cutting process for double-sided tape:1、 Core processing flow (standard steps)Material preparation:Substrate selection: Double sided tape itself, commonly such as PET double-sided tape, foam double-sided tape, non substrate double-sided tape (film), VHB tape, etc.Release paper/film: Depending on the process requirements, it may involve single-sided or double-sided release materials.Auxiliary materials: Sometimes it is necessary to composite other materials, such as protective film, conductive cloth, insulating film, etc.Design knife mold:Types of knife molds: Commonly used are carving molds (for integral steel carving, with the highest precision), etching molds (for chemical etching, used for thin materials and complex shapes), and hardware molds (for large batches and simple shapes).Design points: Consider tape thickness, adhesion, and waste disposal methods. The blade angle and height need to be accurately calculated to ensure that the adhesive layer is cut through without damaging the backing paper or only partially cutting.Machine die-cutting:Place the raw material roll on the unwinding reel and pass it through the die-cutting machine.Driven by precision guide rails, the material passes through the die area and is cut into shape under stamping action.This is the most crucial step, which requires extremely high stability of the machine (concentricity, pressure control).Waste disposal:Frame waste removal: Remove waste edges outside the product's appearance.Inner hole waste removal: Remove unwanted adhesive material inside the product (such as the adhesive in the middle circular hole). This step is quite difficult and often requires auxiliary devices such as ejector pins and blowing air.Whether the waste disposal is clean and efficient directly determines the production efficiency and yield rate.Roll up or SMT:Roll up: Roll the die cut product back into a roll shape, usually kept on release paper.SMT: A single piece of die cut product is attached to another release film to form a single product, which is convenient for manual or automated mounting.Quality inspection and packaging:Check the size, shape, burrs, glue overflow, dirt, etc.Conducted in a clean room to prevent dust from affecting adhesive properties.Pack according to requirements for anti-static and vacuum protection.2、 Key Technologies and DifficultiesAnti overflow glue treatment:Double sided adhesive is prone to overflow due to pressure and heat, which can contaminate molds and products.Solution: Use anti overflow adhesive knife mold (special coating or structure), optimize pressure and speed, control ambient temperature, and select appropriate tape.Cutting depth control:Half cut: Only cut through the adhesive tape layer, without cutting the release paper at the bottom layer. This is the most common process with high technical plete cutting: Cut through all layers at once.Inaccurate depth control can lead to difficulty in peeling off the product or difficult waste disposal.Small size and complex shape:With the miniaturization of electronic products, the particle size may be less than 1mm and the shape may be complex (such as irregular shapes, multiple islands).Propose ultimate challenges to the precision of the cutting die, material tension control, and waste disposal technology.Multi layer composite material die-cutting:Die cutting multiple composite materials (such as tape, conductive foam, and protective film) at once, with different physical properties of each layer of material, increases the difficulty significantly.3、 Application scenario examplesMobile phones/tablets: battery mounting frame, screen pad with high foam, camera dust gasket, internal component shielding adhesive, etc.Automotive electronics: sensor fixing gasket, interior panel adhesive, wire harness fixing dical devices: disposable electrode pads, medical dressings backing adhesive, equipment sealing gaskets.Home appliances: nameplate adhesive, sealing strip, shock-absorbing gasket.4、 How to choose a suitable die-cutting supplierTechnical ability: Can you handle the complexity of your product (size, shape, material combination).Equipment level: high-precision rotary die-cutting machine or flat blade die-cutting machine? Do you have automated testing equipment?Clean environment: Whether there is a corresponding level of dust-free workshop.Quality system: Whether there is a sound ISO quality control system and whether the measuring tools are precise.Sample capability: Sampling speed and sample quality are the most direct ways to evaluate its technology.Cost and delivery time: Comprehensive evaluation while ensuring quality.summaryDie cutting double-sided tape may seem simple, but it is actually a comprehensive technology that integrates materials science, precision machinery, mold engineering, and process experience. Its value lies in transforming ordinary coils into key components that can meet specific design functions, high precision, and high reliability.If you have specific products that require die-cutting, the best way is to provide drawings or samples to a professional die-cutting factory for consultation and sampling. They can provide the most suitable process plan and quotation based on your specific needs (materials, dimensions, uses, quantities).

Green high-temperature PET tape

Green high-temperature PET tape.This is a very common and widely used high-performance industrial tape. Its' green 'is usually the result of dyes or coatings, used for product identification, shading, or to meet the visual requirements of specific industries such as electrical.Interpretation of Core StructureSubstrate: Polyethylene terephthalate film, abbreviated as PET film (also known as polyester film). This is a high-strength, dimensionally stable, and transparent engineering plastic film.Color: Green. This is achieved by adding green dye to PET film or adding colorants to adhesive. This gives it light blocking and recognition properties.Adhesive: Typically, modified acrylic pressure-sensitive adhesive or silicone pressure-sensitive adhesive with excellent high temperature resistance is used.Release paper/film: protective adhesive layer, easy to use.Key performance characteristicsExcellent temperature resistance:According to different adhesives, the long-term temperature resistance range is usually between 130 ° C and 180 ° C.Can withstand higher peak temperatures in the short term (such as over 200 ° C for several minutes).Excellent electrical insulation:PET substrate itself is an excellent insulation material, and adhesive tape is widely used for insulation wrapping and protection of various electronic components.Excellent mechanical performance:High strength, tear resistance, puncture resistance, thin thickness but high strength.Excellent dimensional stability, not easily shrunk or stretched under temperature and humidity changes.Good chemical resistance:Can resist the erosion of various solvents, oils, and weak acids and bases.Color function (green):Light blocking property: It can block light of a certain wavelength and is used for electronic components (such as LEDs, photosensitive devices) or optical applications that require light avoidance.Identification and Marking: Green color facilitates area identification, polarity differentiation (such as distinguishing negative poles on capacitors), or quality traceability in production lines or products.Aesthetics and uniformity: making the final product look more uniform and professional.Main application areasElectronic and electrical industry (core application)Insulation wrapping: Insulate and protect transformers, inductors, motors, wiring harnesses, ponent fixation and reinforcement: fixing capacitors, resistors and other components, or used for PCB reinforcement (such as gold finger reinforcement for flexible circuit boards FPC).Color identification: For example, the negative electrode wrapping identification used for aluminum electrolytic capacitors.Light shielding application: Wrap around sensors or components that require protection from light interference.High temperature process shieldingUsed for shielding and protecting gold fingers, connectors, or through holes on PCB boards that do not require soldering during wave soldering or reflow soldering processes. This is a very important application of it.Due to the sharp edges of PET tape, it can effectively prevent solder from climbing and can usually be removed relatively cleanly after high temperatures.Packaging and sealingUsed for sealing cardboard boxes and boxes that require certain strength and temperature resistance.General industrial fixation and protectionTemporarily or permanently fix components in high temperature or environments that require reliable fixation.How to choose and useKey points for selection:Confirm temperature and duration: The nominal temperature resistance level of the selected tape must be higher than the maximum temperature of your process. For example, if the peak temperature of reflow soldering is about 250 ° C (short-term), a specially optimized ultra-high temperature PET tape should be selected.Confirm bonding surface: Different adhesives have different adhesiveness to different materials (such as plastic, metal, glass). For low surface energy materials such as PP and PTFE, special formulations of adhesive need to be selected.Do you need residue free adhesiveFor applications that require removal such as solder masking, it is essential to choose "high-temperature residue free" PET tape.For permanent insulation wrapping, long-term bonding reliability is more important.Pay attention to thickness and specifications: Common thicknesses include 0.055mm, 0.075mm, 0.10mm, etc. Thicker provides stronger mechanical protection, but slightly less flexibility. The width ranges from 2mm to tens of millimeters.Using best practices:Surface cleaning: Ensure that the surface being pasted is clean, dry, oil-free, and dust-free.Application technique: Apply smoothly, use a scraper or hard card to compact, especially the edges, to avoid bubbles and warping.Removal timing (for masking applications):Post weld cooling: After welding, wait for the PCB board to completely cool to room temperature before peeling off the tape. Hot tearing can easily lead to adhesive residue or tape breakage.Peel angle: Slowly and uniformly peel back at a 180 degree angle.Test verification: Before large-scale use, it is necessary to conduct small-scale process testing to verify its temperature resistance, shielding effect, and removal parison with related tapesCharacteristics: Green high-temperature PET tape, polyimide tape (brown/gold), high-temperature decorative paper tapeSubstrate PET Polyester Film Polyimide Film (PI) Special Wrinkle PaperMaximum temperature resistance ★★★☆ (lasting around 180 ° C) * (lasting above 260 ° C) ★★☆ (lasting around 150-180 ° C)Strength/Tear Resistance *☆ (Extremely High) * (Extremely High) ★☆☆ (Low, Easy to Tear)Electrical Performance ★★★★ (Excellent) * (Excellent) ★★☆ (General, susceptible to moisture)Color/blackout available in color (such as green), usually amber/transparent, usually natural/lightMain applications include electronic insulation, solder shielding, identification of ultra-high temperature solder shielding, flexible circuits, strong insulation spraying, and low-temperature shielding in baking paintMedium to high costIn summary, green high-temperature PET tape is a versatile tape that achieves an excellent balance between strength, temperature resistance, insulation, and cost in electronic manufacturing and general industry. Its green color is not only for aesthetics, but also for shading and recognition functions.

Die cut handle, small ear, peel off film, connect and dispose of waste PET tape

Handle/small ear: A specially designed non adhesive protrusion on the release film or protective film, which is a "hand tear position" for easy removal of the protective film.Peel off: an auxiliary process used to remove protective film from components such as LCD screens and polarizing films.Connection: Connect two materials, such as "splicing" the release paper joint, to ensure the continuous operation of the production line.Waste disposal: The edge and corner waste left after die-cutting and punching are automatically cleaned by sticking them together with tape.⚙️ Core feature: Focus on die-cutting efficiency and qualityThe core design of this type of tape is to make die-cutting processing smoother and make terminal use more convenient. These high-performance PET tapes typically have the following commonalities:High temperature resistance: PET substrates typically have a temperature resistance of up to 180 ℃ -200 ℃ or even 204 ℃, ensuring no melting or residue during possible high-temperature processes.Excellent die-cutting performance: PET substrate has high strength and good stiffness, which is not easy to deform or produce burrs during die-cutting and punching, and is easy to process into complex shapes.Non residue adhesive: After use, it can be cleanly peeled off without contaminating the surface of the product, which is the key to measuring quality.Adhesive system: Acrylic or silicone is widely used, and can be flexibly selected according to specific application scenarios such as viscosity and temperature resistance requirements.📊 Type and Selection: Key Performance Matching on DemandIn order for you to have a clear understanding and selection, the following table categorizes the main product types and their core information by function:Functional classification Common names Substrate adhesive series Core applications and characteristics Performance characteristicsHandle/easy to tear adhesive small ear pull tape, easy to tear adhesive PET acrylic for LCD screen protective film peeling; The handle is colored and the handle area is glue free, making it easy to operate. Strong adhesion, no residue leftAdhesive tape PET adhesive tape PET high temperature resistant special adhesive is used for connecting release paper, film and other materials; Single sided coating, high temperature resistance, high adhesion. High temperature resistance and high viscosityPET waste disposal tape PET acrylic acid automated waste disposal; Moderate viscosity, can remove waste from the die-cutting substrate. Adhesive stability, easy to peel off3M universal die-cutting tape ™ 8992L polyester tape PET silicone die-cutting punching, automated bonding; With release paper, it is easy to dispose of waste and does not curl. Easy to die cut, high temperature resistant⚙️ Process application: full process support from design to automationThe application of this PET tape runs through the entire process of die-cutting production.Design and Manufacturing: The design of "little ears" is for the convenience of peeling off the film. During manufacturing, due to the sufficient rigidity of its PET substrate, the AB punching process is commonly used for high-precision mass production, and simple molds can also be used for small-scale production.Automated assistance: This type of tape also drives automation. For example, PET compression can be used to achieve automatic folding of the handle to prevent over folding; Automated equipment can also be directly used to achieve high-speed film peeling and connection.Role in the production line: It plays a key role in automated production lines and is often used to cooperate with circular or flat cutting machines for die-cutting and waste removal, as well as to link with surface mount machines for waste removal.💎 summaryOverall, this type of PET tape is a powerful assistant in improving efficiency and yield in precision manufacturing. The core of its selection lies in clarifying the process requirements (whether it is waste disposal, connection, or manual tearing), and matching appropriate substrates, adhesive systems, and peeling forces accordingly. I hope this guide can help you clarify your thoughts and make more suitable choices in die-cutting applications.

Blue PET high-temperature adhesive tape

Blue PET high-temperature tape is a very important special tape in the fields of electronic manufacturing, electrical insulation, and industry. It usually refers to a type of adhesive tape made from polyester film (PET) as the substrate, coated with high-performance silicone pressure-sensitive adhesive (or acrylic adhesive), and subjected to high temperature treatment.Below is a detailed introduction to its features, applications, and key points for purchasing:Core features and advantagesExcellent high temperature resistance: This is its most important feature. It can usually withstand high temperatures of 130 ° C to 260 ° C for a long time, and even higher temperatures in an instant (such as 300 ° C+). This enables it to maintain stable performance in high-temperature processes such as soldering and reflow soldering.Excellent electrical insulation: PET substrate itself has excellent insulation performance, making it an ideal insulation material for electronic and electrical components such as circuit boards and motor coils.Good chemical stability: resistant to solvents, acid and alkali, moisture-proof, and able to resist the erosion of various chemicals.Strong physical performance:High strength: resistant to stretching and tearing.Dimensional stability: not easily shrink or deform at high temperatures, maintaining precise positioning.Soft and snug: easy to wrap and stick on complex surfaces.Color meaning: Blue is not only a visual identifier for easy identification and inspection, but also blue PET is usually treated with anti-static measures, making it safer for sensitive electronic components. Some blue colors are also used to change color (such as becoming lighter) after high temperatures to indicate that they have undergone a high-temperature process.Easy to tear and leave no residue: High quality tape can be cleanly peeled off after high-temperature protection, without leaving any adhesive stains on the surface of the object being pasted.Main application areasManufacturing of electronic circuit boards (PCBs):Wave soldering and reflow soldering: used to cover (mask) gold fingers, connectors, or specific areas that do not require soldering.SMT patch: Fixed components or used as temporary protection.PCB Splitting: Protect edge circuits during PCB cutting.Electrical insulation:Used for interlayer insulation and bundling of motors, transformers, and inductor coils.Winding and labeling of wires and cables.High temperature spraying and surface treatment:Protect specific areas of the product surface during processes such as painting, sandblasting, and posite material processing:Used as an isolation film or protective film during the curing process of carbon fiber and fiberglass products.Other industrial uses: such as lithium battery manufacturing, heat sealing, temporary fixation in high-temperature environments, etc.Key parameters to pay attention to when making a purchaseSubstrate thickness: Common thicknesses include 25 μ m (1mil), 36 μ m, 50 μ m, etc. The thicker, the higher the mechanical strength, but the flexibility may slightly decrease.Adhesive type:Silicone: The most common and has the best temperature resistance (up to 260 ° C or above), but its initial adhesion may be relatively low and its price may be higher.Acrylic adhesive: has good initial adhesion and adhesion retention, slightly lower temperature resistance (usually 130 ° C-180 ° C), and relatively affordable price.Total thickness: including the total thickness of the substrate and adhesive layer.Temperature resistance level: It is necessary to confirm the long-term use temperature and short-term peak temperature to ensure that your process requirements are met.Width and length: Choose the appropriate roll size according to the usage scenario.Release paper/release film: protect the adhesive surface and ensure that the tape remains sticky before mon Brands and MarketsInternationally renowned brands: 3M (such as 3M 5413, 3M 5419 series), Nitto, Tesa, Teraoka, etc., with reliable quality but high prices.Domestic brands: China also has many excellent manufacturers with high cost-effectiveness, such as Shiyi, Yongle, Fengzhao, etc., which have performed well in meeting industrial demand.Usage recommendationsSurface cleaning: Before pasting, ensure that the surface to be pasted is dry, clean, and free of oil stains.Moderate pressure: Apply even pressure during pasting to ensure that the tape is in full contact with the surface without any bubbles.Environmental testing: Before mass use, it is best to conduct small-scale testing under actual working conditions to confirm its temperature resistance, peel strength, and residual adhesive condition.In summary, blue PET high-temperature tape is a key material that connects "high-temperature processes" and "precision protection". When choosing, please carefully check the product specification sheet (TDS) or request samples from suppliers for testing based on your specific application scenario, temperature requirements, and budget to ensure the most suitable product is selected.

High temperature resistant PI tape

"High-temperature resistant PI tape" is a shortened form of polyimide tape, and it is also one of the top-performing high-temperature resistant pressure-sensitive tapes currently available on the market."PI" stands for Polyimide, a material hailed as a "master at problem-solving" and a "golden film". Hence, "high-temperature resistant PI tape" typically refers to the amber-colored polyimide tape and its high-performance variants that we previously discussed in detail.Key purchasing points for "high temperature resistant PI tape" When selecting a PI tape, it is crucial to pay attention to the following core parameters, as they determine whether it is suitable for your specific application:Color and thickness:Tea/Amber: The most common standard type, with balanced performance.Black: Typically, black is achieved by adding carbon black or other fillers, which may offer superior UV resistance and thermal/electrical conductivity, but may slightly compromise the basic insulation properties.Thickness: ranging from ultra-thin 12μm (0.5mil) to standard 25μm (1mil) and 50μm (2mil). The thinner, the better flexibility, suitable for precision masking; the thicker, the stronger mechanical protection and insulation.Adhesive type (determining the upper temperature limit and residue):High-temperature resistant silicone pressure-sensitive adhesive: This is a top-tier configuration. It can withstand temperatures above 260℃ for extended periods, leaving no residue or very minimal residue after exposure to high temperatures, but it is extremely expensive.Special acrylic pressure-sensitive adhesive: This is a cost-effective option. Its long-term temperature resistance is typically 180°C - 200°C, and it can achieve low residual adhesive after peeling within an appropriate time frame, with relatively low cost.Key performance indicators:Dielectric strength: Ensure that its insulation performance meets your voltage requirements.Peeling force: Choose an appropriate level based on whether it is used for "precise masking" or "strong fixation".Certification: UL certification (ensuring insulation and flame retardant safety), RoHS/REACH (environmental compliance) are crucial for high-end applications.Summary: When must PI tape be chosen?When the following stringent conditions are simultaneously met, PI tape is almost the only or optimal choice:Temperature limits: Operating temperature continuously exceeding 200℃, or experiencing a soldering impact of over 260℃ instantaneously.Precision requirements: The dimensions must remain absolutely stable (without shrinkage) after exposure to high temperatures, and it should be capable of achieving clean peeling without leaving any residual adhesive.Reliable insulation: It is necessary to maintain the highest level of electrical insulation reliability even under extreme temperature conditions.If your application temperature is below 180℃ and your requirements for dimensional stability and residue-free are not extreme, then high-performance PET tape or glass cloth tape would be a more cost-effective choice.Please make your final decision based on your specific process (e.g., is it circuit board reflow soldering or motor coil wrapping?) and budget. If you require more specific advice, please provide more details about your application.

High-temperature resistant green PET insulation tape

"High-temperature resistant green PET insulation tape"As the name suggests, this tape is specifically designed for scenarios where reliable electrical insulation is required in high-temperature environments. It possesses the following composite characteristics:Excellent electrical insulation (core):The PET substrate itself possesses excellent insulation properties, and when combined with specialized insulating glue, it exhibits high dielectric strength, effectively preventing current leakage, short circuits, and breakdown. It is suitable for insulation wrapping in medium and low voltage electrical environments.Excellent high temperature resistance:The long-term temperature tolerance range is typically between 130℃ and 180℃, depending on the glue formula (which may be high-temperature resistant acrylic glue or silicone glue). It can adapt to the temperature rise environment of heating components such as motors and transformers.Physical properties of PET substrate:High strength: Resistant to tension and tearing, providing excellent mechanical protection.Dimensional stability: It is not prone to shrinkage and deformation when heated, ensuring the stability of the insulation layer.Chemical resistance and moisture resistance: It exhibits good resistance to most solvents, oils, and greases, as well as humid environments.Smooth surface: easy to clean, not prone to dust accumulation.The function of the green appearance:Phase identification: In electrical engineering, green is commonly used to identify grounding wires or specific phases (note: electrical color standards may vary across different countries/regions, with yellow-green being the standard for grounding wires in China).Safety warning: It serves as a prominent marker in equipment or wiring harnesses.Grade differentiation: Used to distinguish lines of different voltage levels or functions in complex wiring harnesses.Due to its multifunctional properties of insulation, temperature resistance, and identification, the core application field is commonly found in:Motor and transformer manufacturing: interlayer insulation of coil windings, bundling, and insulation protection of outgoing line parts.Household appliances: Cable insulation and fixation for heating components (such as those inside electric ovens and hair dryers).Automotive electronics and wiring harness: Insulation wrapping and identification of cables in high-temperature areas within the engine compartment.Power supply and inverter: Insulation wrapping and identification of internal power components and busbars.Industrial equipment: Repair or reinforcement of wire insulation at high-temperature points within switchboards and control cabinets.When purchasing key indicators, please be sure to verify the following parameters, which are usually clearly listed in the product specification:Dielectric strength (breakdown voltage): This is the most crucial indicator for measuring insulation performance, with units of kV/mm or V/mil. The higher the value, the stronger the insulation capability.Temperature resistance level:Long-term use temperature (e.g. Class B: 130℃, Class F: 155℃, Class H: 180℃).Short-term overload temperature.Thickness: It affects the insulation effect and flexibility.Adhesion: Ensure a firm adhesion to wire insulation, enameled wire, or metal surfaces.Flame retardancy: Although not emphasized in the name, high-quality electrical insulating tape typically requires a UL 94 V-0 flame retardant rating, which is crucial for safety.Certification: Whether there are safety and environmental certifications such as UL, CSA, RoHS, etc.For a detailed comparison with related products to help you distinguish clearly, please refer to the table below:Characteristics High-temperature resistant green PET insulation tape Green PET high-temperature resistant silicone tape Polyimide (gold finger) high-temperature tape High-temperature resistant glass cloth tape Core demands Electrical insulation + temperature resistance + identification Temperature resistance + fixation/shielding + identification Ultra-high temperature residue-free shielding Flame retardant + mechanical protection + insulation Key indicators Dielectric strength (kV/mm) Temperature resistance, adhesive strength Temperature resistance, residue-free property Flame retardant grade, tensile strength Typical adhesive systems High-temperature resistant acrylic adhesive or silicone adhesive Primarily silicone adhesive Special acrylic adhesive Silicone or flame retardant acrylic adhesive Main substrates PET film PET film Polyimide film (PI) Glass fiber cloth Hand feel/strength Stiff and tensile Stiff and tensile Extremely thin and flexible Soft and extremely wear-resistant and tear-resistant Typical applications Motor insulation, electronic component insulation wrapping High-temperature shielding and high-temperature fixation in SMT PCB reflow soldering shielding Wire harness bundling, pipeline insulation and fire protection Cost Medium On the higher side of medium Very high Medium Summary and decision-making suggestions In simple terms:If your primary need is electrical insulation, and the environment has a certain temperature, and you also need green as a marking, then "high temperature resistant green PET insulation tape" is your direct choice.If the temperature is extremely high (>180℃) and precise masking is required, polyimide tape should be chosen.If you require extremely strong mechanical protection, wear resistance, and flame retardancy, you should choose glass cloth tape.If both products have high temperature and green labeling, but without stringent official certification requirements for insulation properties, they may be interchangeable. However, products labeled as "insulating tape" typically offer greater assurance in terms of dielectric strength.Finally, please ensure to make your selection based on your actual application voltage level, operating temperature, and specific scenario. Checking the "dielectric strength" and "temperature class" in the product specification is a crucial step in model selection.

PET-based double-sided adhesive tape

Double-sided adhesive tape made of PET substrate. This is one of the most core and widely used categories of industrial tapes, and can be called the "universal connector in the industrial field".1. Core positioning: What is PET double-sided tape?It is made of biaxially oriented polyester film as the intermediate substrate, coated with pressure-sensitive adhesive on both sides, and protected by release paper (film). Essentially, it is a high-performance thin adhesive sheet.Keywords: strength, stability, insulation, lightness, multi-purpose.II. Why choose PET double-sided tape? Five core advantagesAdvantages Specific description Brought value1. Excellent dimensional stability: Minimally affected by temperature/humidity, with a thermal shrinkage rate of <1% (typically within 0.5%), ensuring no warping or displacement after precise fitting. It is the first choice for screen fitting and precision electronics.2. Excellent mechanical properties: Resistant to stretching, tearing, and puncturing, with high strength. Capable of withstanding significant stress, used for structural fixation and reinforcement.3. Excellent electrical insulation properties: PET itself is an excellent insulating material with high dielectric strength. It is widely used for insulation, fixation, and protection of electronic components.4. Excellent processing adaptability: Easy to die-cut, punch, and slit, suitable for high-speed automated production. High production efficiency, capable of producing any complex shape.5. Balance of performance and cost: It offers the highest comprehensive cost-performance ratio among acrylic tapes. It is thinner and stiffer than foam tape, and less expensive than PI tape, making it the most popular general-purpose choice.III. In-depth Analysis of Key Components (A Must-See for Model Selection)1. Base material: PET filmThickness: Determines the filling capacity, cushioning, and rigidity of the tape. Common thicknesses include: 0.025mm, 0.05mm, 0.075mm, 0.1mm, 0.125mm, 0.188mm, 0.25mm.Treatment: Corona or coating treatment to enhance the adhesive's adhesion.Color and translucency:Transparency: Optical applications, such as temporary fixation of display devices.White/Black: Shading, identification, decoration (such as internal cover of mobile phone, bottom layer of nameplate).Beige/Gray: General industrial use.2. Adhesive: The soul of performanceSolvent-based acrylic adhesive: The mainstream choice. High initial adhesion, high final adhesion, good temperature and weather resistance.Water-based/lotion-type acrylic adhesive: More environmentally friendly (low VOC), but slightly weaker in water resistance and high temperature resistance.Silicone pressure-sensitive adhesive: used in high-temperature scenarios (long-term exposure to 150-200°C), but with high cost and potentially poor adhesion to plastics.The core performance indicators of adhesives include: initial adhesion, peel strength, holding power, temperature resistance, and chemical resistance.3. Release material: Affects processing efficiencyMaterial: PET release film (high flatness), glassine release paper (economical).Release force: Light, medium, and heavy release, which must match the peeling capability of automatic mounting equipment.IV. Mainstream Application Scenarios and Selection GuidelinesApplication Industry Typical Use Recommended Tape Characteristics (Keywords)Consumer electronics: Mobile phones/tablets: Internal component fixation, FPC attachment, battery fixation, and decorative part fitting. Ultra-thin (0.05-0.1mm), high adhesion, good die-cutting performanceDisplay assembly: Auxiliary fixation of LCD and backlight, touch module and cover panel. High transparency, low haze, no Newton's rings, medium viscosity (easy to rework)Automotive electronics/interior decoration: fitment of in-vehicle displays, interior decoration labels, control panels, and sensor fixation. Resistance to high temperature and humidity, resistance to thermal cycling, and anti-agingLithium battery manufacturing: cell insulation, battery and housing fixation, tab protection. Insulation, flame retardant (UL94 V-0), long-term reliabilityHome appliance manufacturing: Control panel, nameplate, and internal wiring harness fixation. Temperature resistance, chemical resistance, and durable adhesionGeneral industrial use: splicing of plastic/metal/glass plates, labeling, and light-duty hook fixation. High cost-effectiveness, universal adhesion, and multiple thickness optionsV. "Four-step method" for model selection decision-makingStep 1: Determine the adherend"What am I going to glue?" (Material type: plastic, metal, glass, ceramic?)"What about surface energy?" (Difficult-to-stick plastics such as PP/PE require special adhesive systems or surface treatment)Step 2: Analyze the working environmentTemperature: Regular (-20~80°C) or High Temperature (>100°C)?Chemistry: Is there any contact with solvents, oils, or sweat?Outdoors: Is UV resistance required?Stress: Is it subjected to shear force, peeling force, or impact force?Step 3: Clarify process and appearance requirementsProcessing method: manual lamination or high-speed automatic lamination? It determines the release force and substrate stiffness.Appearance requirements: Do you need it to be transparent, white, or black? Is seamless adhesion required?Certification requirements: UL, RoHS, REACH, halogen-free, etc.Step 4: Sample testing and verification (the most crucial step!)Initial adhesion test: Does it stick instantly after being applied?Peel force test: After 24 hours or 168 hours, does the peel strength meet the standard?Aging test: After simulating high temperature and humidity, as well as cold and heat cycling, does the performance degrade?Process validation: Conduct trials on the actual production line to assess the smoothness of die-cutting, waste removal, and mounting.VI. Brand Guidelines and Procurement StrategiesBrand Tier Representative Brands Features and Purchasing SuggestionsInternational top-tier brands such as 3M, Tesa, and Nitto are performance benchmarks with the highest reliability. They are suitable for cutting-edge products with extremely high requirements and sufficient budgets (such as flagship phones and core automotive components). Procurement channels: officially authorized dealers.Domestic leaders: SOWAY, Jinghua, Yongyi, Shihua. The king of cost-effectiveness, with fast service response. Their products have covered the vast majority of mid-to-high-end applications and are the main choice for consumer electronics, home appliances, and general industrial applications. Recommended as the first choice for inquiry and sample testing.Specialized segmentation: Numerous domestic/Taiwanese brands have advantages in certain specific areas (such as special thicknesses, colors). Suitable for customers with unconventional needs.VII. Common Misconceptions and Tips to Avoid PitfallsMisconception 1: The thicker the tape, the stronger the adhesive → False! Adhesiveness depends on the adhesive, while thickness mainly affects filling and cushioning.Misconception 2: Ignoring surface treatment → For difficult-to-stick plastics, directly attaching without treatment will inevitably fail. It is essential to conduct a surface energy test (using a dyne pen) first.Misconception 3: Focusing solely on initial tackiness → Long-term reliability (tack retention, aging resistance) is more crucial, necessitating aging testing.Misconception 4: Release paper is not important → Mismatch in release force is a common cause of decreased yield in automatic placement.Summary and Final RecommendationsPET double-sided tape is the cornerstone material for addressing the bonding needs of "thinning, precision, and automation". It is not a standard product, but rather a customized solution that needs to be selected according to the application.

Glass cloth double-sided tape

What is high temperature tape used for?

With the rapid development of chemical industry, many new materials are constantly emerging. The most common of these is tetrafluoroethylene high-temperature tape, which has a very smooth surface and excellent anti-stickiness properties. In addition, it also has good corrosion resistance and high temperature resistance, and is widely used in packaging, thermoplastics and electrical and electronic industries. Below, I will share with you the purpose of high temperature tape ~ 1. Electronic protective paste High temperature tape is especially suitable for SMT temperature protection, electronic switches, PCB boards, electronic transformers and other electronic components that require high temperature resistance and moisture protection. 2. Electronic circuit board It is usually suitable for electronic circuit boards, protecting high-end appliances, insulating motors, and fixing the positive and negative extremes of lithium batteries. 3. Insulation wrapping of electronic products High-temperature tapes can be used for insulation wrapping of Class H motor and transformer coils in high-demand occasions, wrapping and fixing high-temperature resistant coil ends, thermal resistance protection for temperature measurements, and other bonding and insulation functions under high-temperature working conditions. 4. Metal materials Some precious metal materials require high-temperature painting and sandblasting to shield and protect the product. After being spray-painted and baked on high heat, it peels easily and leaves no residue behind.

PET green film high-temperature tape

This is a type of pressure-sensitive adhesive tape made of polyester film (PET) as the substrate, coated with high-temperature resistant silicone adhesive, and usually made into green. Green is mainly used for visual recognition and differentiation during automatic mounting or production processes.Key features and advantagesExcellent high temperature resistance:This is its most important characteristic. The long-term temperature resistance range is usually between 130 ℃ and 200 ℃, and it can withstand peak temperatures of up to 260 ℃ or even higher in the short term (such as during wave soldering and reflow soldering).Does not melt, shrink, or residue at high temperatures.Excellent electrical insulation performance:The PET substrate itself has good insulation properties, making it suitable for situations that require insulation protection.Good chemical stability:Can resist the erosion of most solvents, acids, bases, and oils.Excellent physical performance:High strength, tear resistance, and dimensional stability (not easily stretched or deformed).The surface is flat and smooth, with no raised edges.Moderate viscosity, no residue after peeling:Silicone adhesive can maintain stable viscosity even after high temperature, and can be cleanly peeled off after cooling without contaminating the surface of the workpiece.Main application areasManufacturing of electronic circuit boards (PCBs):Wave soldering/reflow soldering shielding: During the soldering process, protect the gold fingers, connectors, or specific areas from solder contamination.PCB board splitting: During V-CUT or stamp hole splitting, fix the board edge to prevent component detachment.SMT surface mount:Perform local masking or fixation on the surface mount machine.High temperature spray painting and baking paint:In industries such as automotive and metalworking, tape is used to cover areas that do not require painting during spraying, and it can withstand high temperatures from baking.Lithium battery manufacturing:Used for processes such as fixing battery cells, protecting and insulating electrode lugs.Photovoltaic solar panels:Used for positioning and insulation in high-temperature processes such as battery cell string welding and lamination.General high-temperature bundling, fixing, and mon specification parametersColor: Green is the most common (there are also shades of tea, transparent, white, black, etc. Green is the most popular due to its light blocking and good recognition).Thickness: Common types include 25 μ m (substrate)+adhesive, 35 μ m, 50 μ m, etc. The thicker, the better the mechanical protection and insulation performance, but the flexibility will decrease.Adhesive force: usually provides moderate viscosity, but there are also high viscosity models.Length and width: shipped in rolls, with widths ranging from 1mm to 500mm or more, and lengths typically ranging from 33 meters to 66 meters.Selection and usage precautionsClear temperature requirements: Confirm the continuous operating temperature and peak temperature of your process, and select the corresponding grade of product.Testing residual adhesive: Before use, it is necessary to conduct testing under your actual workpiece material and process conditions to ensure that it can be cleanly peeled off after high-temperature cooling.Surface cleaning: The surface of the sticker must be clean and dry, free of oil stains and dust, to ensure the best bonding effect.Brand and Quality: There are numerous brands in the market with varying levels of quality. Well known brands such as 3M, Nitto, Tesa Saint-Gobain、 Local products such as Yongguan and Wande have more stable and reliable performance, but their prices are also higher.summaryPET green film high-temperature tape is a multifunctional industrial tape that combines four characteristics: mechanical strength, high temperature resistance, electrical insulation, and clean peeling. When your application involves medium to high temperature environments and requires reliable protection and easy removal, it is usually the preferred solution.If you have more specific application scenarios (such as what products to use for and what the process temperature is), I can provide you with more targeted suggestions.

Question and answer

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