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

Finger tape

Golden finger high-temperature tape "is a very specific and commonly used term in the fields of electronics and electrical engineering. It usually refers to high-temperature insulation tape based on polyimide film.Below is a detailed analysis of the origin, characteristics, applications, and selection considerations of this name.1、 Why is it called 'Golden Finger'?This common name comes from its most classic and iconic appearance:Substrate: The polyimide film itself has an amber color (light brown yellow) and a golden luster when exposed to light.Adhesive: Early high-performance silicone pressure-sensitive adhesives were also light yellow in bination effect: After combining the two, the tape presents a unique "golden" overall appearance, hence the name "Golden Finger Tape".Important notice: Not all "golden" tapes are gold finger tapes, nor are all gold finger tapes gold. Nowadays, there are other colors such as black and white, but "golden fingers" have become synonymous with polyimide high-temperature tape.2、 Core features (why it is highly regarded)Polyimide (PI) material endows it with unparalleled comprehensive performance:Ultimate high temperature resistance:Long term temperature resistance: -269 ℃ to+260 ℃.Short term temperature resistance: can withstand high temperatures up to 400 ℃ without melting or dripping (only carbonization). This is its most core advantage.Excellent electrical insulation:High dielectric strength can effectively prevent breakdown under high voltage, making it an excellent insulation material.Excellent flame retardancy:It is not flammable and meets the UL94 V-0 rating. It will self extinguish after the evacuation of an open flame and does not support combustion.Excellent chemical stability:Resistant to most solvents, oils, and acids, especially to corrosion from battery electrolytes.Good mechanical performance:High tensile strength, tear resistance, and excellent dimensional stability (with minimal shrinkage at high temperatures).Environmentally friendly and non-toxic:No toxic substances will be released at high temperatures.3、 Main application scenariosDue to its excellent performance, "Golden Finger Tape" is widely used in fields with strict requirements for temperature resistance and insulation:1. Battery field (core applications):Cell ear insulation: Wrap aluminum/copper ears to prevent short circuits with the casing or other components. This is the most classic application.External insulation of battery cells: wrapped around square or cylindrical battery cells to provide insulation protection.Module/Pack interior: used for fixing wiring harnesses, insulation protection, thermal insulation, etc. in high-temperature areas.2. Electronic product manufacturing:PCB board: shielding protection during wave soldering and reflow soldering processes (protecting gold fingers and specific areas from soldering).Coil and transformer: interlayer insulation, bundling and fixing.Heating elements: insulation and fixation of resistors and MOS transistors.3. Other industrial sectors:Aerospace cable insulation.High temperature spray painting and powder coating masking.High temperature processes in semiconductor and liquid crystal manufacturing.4、 Selecting key points (how to choose the appropriate model)Even though they are all called "golden finger tape", there are significant differences in performance among different models, mainly based on the following points:Adhesive type (most critical):Organic silicon pressure-sensitive adhesive: the most commonly used. The highest temperature resistance (up to 300 ℃), good chemical stability, but relatively low initial adhesion, and some models have the risk of silicone oil migration (which may affect precision circuits).Acrylic pressure-sensitive adhesive: It has stronger initial adhesion and holding strength, and has good adhesion to various substrates. However, its long-term temperature resistance usually does not exceed 130-150 ℃, and its chemical resistance (especially to electrolytes) may be slightly poor.Selection: In the field of batteries, it is necessary to use organic silicone gel systems that are resistant to electrolytes.ThicknessCommon thicknesses include 25 μ m (1mil), 50 μ m (2mil), 75 μ m (3mil), etc.The thinner, the better the flexibility, suitable for fine wrapping such as extreme ears; The thicker it is, the better its mechanical strength and insulation properties, making it suitable for wear resistance or situations that require structural strength.Color and functionality:Amber (gold): the most versatile.Black: Usually added with carbon black, it has a certain conductivity (single-sided or double-sided conductivity) and is used for electromagnetic shielding (EMI).White: commonly used in LED or high reflectivity applications.Green/Other Colors: Easy to distinguish and manage products.Certification and Reliability:Check if it has passed UL certification (such as UL 746C, UL 510), RoHS, REACH, etc.For battery applications, suppliers should be able to provide long-term electrolyte immersion test data.5、 Famous brand reference3M: Industry benchmark, with the most comprehensive product line, such as 3M ™ 92、3M ™ 1205、3M ™ Series 5413 and others.Nitto (Nitto Denko): High quality representatives, such as the No. 350 and No. 5600 series.Tesa: With excellent performance, it is widely used in the field of batteries.Sekisui (Water Chemistry): Focusing on polymer materials, our products are reliable.Saint Gobain: Strong in the field of industrial specialty tape.Domestic brands such as Jinghua and Riju also have corresponding products with high cost-effectiveness, but strict performance verification is required when choosing.Summary and RecommendationsGolden finger high-temperature tape "specifically refers to polyimide (PI) high-temperature insulation tape, which is an indispensable high-performance material in battery and electronic manufacturing.When making a purchase, please be sure to clarify:Usage: Is it used for battery terminals, PCB shielding, or other purposes?Temperature resistance requirement: What is the long-term working temperature? Is there an instant high temperature?Environmental media: Will it come into contact with electrolytes or solvents?Adhesive substrate: Is it attached to aluminum, copper, plastic, or glass?Process requirements: Is it manual pasting or machine automatic pasting? Do you have any special requirements for initial adhesion and thickness?Suggest requesting detailed Technical Data Sheets (TDS) from the supplier and conducting small batch testing to ensure full compliance with your application requirements.

What is high-temperature tape? What are the main types and uses?

In many industrial manufacturing and electronic assembly scenarios, ordinary adhesive tape can fail, melt, or even burn when exposed to heat, causing serious problems. At this point, professional high-temperature adhesive tape is needed. This article will take you to quickly understand the basic knowledge, mainstream types, and key application areas of high-temperature adhesive tape.1、 What is high-temperature tape?High temperature adhesive tape, as the name suggests, is a special type of industrial tape designed to withstand medium to high temperature environments. It is not a single product, but a vast family.Its core characteristics are:Excellent heat resistance: The substrate and adhesive are specially formulated to work stably for a long time within a specific high temperature range (usually from 120 ℃ to over 300 ℃), without melting, shrinking, or losing viscosity.Stable physical and chemical properties: able to maintain good insulation, corrosion resistance, anti adhesion or mechanical strength at high temperatures, meeting the stringent requirements of specific processes.Accurate functionality: Used for critical processes such as shielding and protection, insulation fixation, bundling and sealing, anti sticking and demolding, it is an indispensable auxiliary material for improving product quality and production safety.Simply put, high-temperature adhesive tape is a professional tool for solving the problems of bonding, protection, and insulation in "hot" environments.2、 Comparison of the Four Main Types and Core UsesTo facilitate your quick selection, we have compiled the following four most common types of high-temperature adhesive tapes and their characteristics:Common types, temperature resistance range (long-term), core characteristics, and main application scenariosPolyimide tape(Golden Finger Tape/Kapton Tape) With top-notch high temperature resistance and electrical insulation from 260 ℃ to 300 ℃, the material is lightweight and strong, usually with yellow or dark green release paper. Electronics industry: Protect gold fingers and sensitive areas during PCB board wave soldering and reflow soldering; Insulation of motor and transformer coils.High temperature spray painting: precise masking during car and furniture baking.Teflon tape(PTFE Teflon tape) Excellent anti adhesion and chemical corrosion resistance at 200 ℃ -260 ℃, with an exceptionally smooth surface, extremely low friction coefficient, and easy cleaning. Packaging and heat sealing: anti sticking layer for plastic bag heat sealing machine and sealing machine.Food industry: drying line, conveyor belt anti sticking.Chemical industry: anti-corrosion sealing gaskets for reaction vessels and pipe openings.PET tapePolyester film tape has good balance between 120 ℃ and 180 ℃, excellent insulation, solvent resistance, and dimensional stability, and high cost-effectiveness. Electronic components: Fixed, insulated, and protected in medium temperature environments.Lithium battery manufacturing: cell bundling and pole ear fixation.General high-temperature shielding.Fiberglass tape has extreme high temperature resistance, thermal insulation, and fire resistance from 200 ℃ to 600 ℃. The substrate is fiberglass woven cloth, which has high strength but is not usually used for precision insulation. Heavy industry: High temperature pipeline wrapping, boiler insulation, welding operation shielding.Heat sealing cutting: protection of the heat sealing blade edge of packaging machinery.Thermal insulation protection.3、 How to make a preliminary selection?Faced with multiple types, you can follow a simple "three-step method" for initial screening:Temperature setting: What is the maximum temperature for my process? (This is the primary screening criterion)Function: What function do I need the most? Is it insulation (choose polyimide/PET), anti sticking (choose Teflon), shielding (choose polyimide/PET), or bundling insulation (choose fiberglass)?Fixed surface: What material surface does the tape need to be attached to? (Smooth, rough, curved?) Do you need no residual glue?Professional tip: The above are basic classifications. In practical applications, there are more detailed products under each type (such as different thicknesses, adhesives, single/double-sided tapes, etc.). The most reliable way is to provide you with specific process parameters (temperature, time, pressure, substrate, etc.), consult our technical engineers, and obtain customized selection recommendations.summaryHigh temperature adhesive tape is the "behind the scenes hero" in precision manufacturing and industrial production. Choosing the right type not only ensures the smooth progress of the process, but also improves product yield and ensures operational safety. Understanding their differences is the first step towards efficient and professional production.

MLCC upper/lower tape coated with silver tape

In the production of MLCC (Multi Layer Ceramic Capacitors), the "upper/lower tape" and "silver dipping tape" you asked about are two completely different specialized tapes that play important roles in packaging, transportation, and electrode manufacturing, respectively.📦 Cover/Base TapeThis type of tape is mainly used for packaging and transportation of electronic components. They are used in conjunction with paper carriers to securely seal small components such as MLCC in the grooves of the carrier for accurate picking on automated surface mount machines.Core requirement: To prevent tiny MLCC from being electrostatically broken down, this type of tape usually needs to undergo anti-static treatment. At the same time, they also need to have stable peeling force (pulling force) to ensure that they can be smoothly peeled off on the automatic mounting machine without leaving irregular tear marks.Main suppliers: Major players in the industry include Japan's Mattei Group, Jiemei Technology, and some professional manufacturers such as Taicang Qunte Electrical Materials.🎨 Silver Termination TapeThis type of tape is used in the "sealing" process of MLCC manufacturing to protect the ceramic body parts that do not require sizing. Due to the need to be exposed to high temperatures, it has high requirements for heat resistance.Working principle: When silver paste (or copper paste) is applied to the end of MLCC to form an external electrode, this tape tightly wraps around the rest of the capacitor, providing shielding and protection. Subsequently, the components with adhesive tape will enter a high-temperature oven or sintering furnace for processing.Core technical requirements:High temperature resistance: This is the most critical characteristic. After high-temperature treatment at 200 ° C to 260 ° C, the performance of the tape must remain stable and cannot deform or melt.No residual adhesive: When peeled off after the process is completed, it must be 100% residue free. Any residual adhesive will affect the performance or appearance of MLCC.Flexible and snug: The tape needs to be able to tightly adhere to the tiny surface of MLCC, providing reliable shielding for subsequent electroplating, sintering, and other processes.Main suppliers: The main suppliers in the market include Shenzhen Yizhong Technology Co., Ltd., Dongguan Xinpengda Adhesive Products Co., Ltd., Haojia Enterprise Co., Ltd., Shenzhen Youtu Technology, etc.⚙️ New choice in technology: thermal foaming tapeIn the "silver dipping" process, in addition to traditional silver dipping tape, a more advanced thermal foaming tape is becoming popular.Traditional silver coated adhesive tape needs to be manually or mechanically removed after protection, while thermal foam tape utilizes its own characteristics to rapidly expand in volume at specific high temperatures (about 190-210 ° C), thereby automatically and completely eliminating the stickiness and achieving automatic unloading of components. This characteristic makes it more suitable for high-precision automated production and can effectively avoid the physical damage that traditional tape may cause to fragile ceramic bodies or electrodes when torn off, especially when dealing with small-sized MLCCs

Aviation honeycomb sandwich epoxy film adhesive

Aviation honeycomb sandwich epoxy adhesive film "is a high-tech composite material. Simply put, it is like an ultra high strength" industrial double-sided adhesive ", specially used to firmly bond the skin of an aircraft (such as carbon fiber board) and the honeycomb core material inside, forming what we often call a" sandwich "structure. This structure is both light and strong, widely used in components such as aircraft wings, radar covers, and floors.At present, the mainstream products in the market are mainly divided into two camps: international and domestic, each with its own characteristics. For your convenience in comparison, I have compiled a table:✈️ Main product comparisonProduct Model/Series Manufacturer/Source Core Features Typical Application Scenarios3M ™ AF 163-2 is a classic product widely used in the international aviation field by 3M Company (International). High toughness, good peel strength, and can be cured at medium temperatures (about 120 ° C). There are multiple models to choose from. Adhesive bonding of metals, composite materials, and honeycomb structures, suitable for aircraft components, engine parts, etc.SY-24C/SY-24C-300 is a high-performance product mainstream in China, developed by AVIC Beijing Institute of Aeronautical Materials. High strength and good toughness, when used in conjunction with SY-D9 primer, can enhance corrosion resistance. The SY-24C-300 model has excellent dielectric properties and is particularly suitable for components such as radar covers that require wave transmission. Suitable for manufacturing honeycomb sandwich structures for helicopter fuselage floors, partitions, and onboard radar covers.J-97 foam adhesive film is a special type of foam adhesive film developed by the Petrochemical Research Institute of Heilongjiang Academy of Sciences. It expands and fills gaps during curing, and is mainly used for splicing, local reinforcement, and edge sealing between honeycomb corematerials. Used in conjunction with J-95 and other structural adhesive films for the manufacturing of honeycomb sandwich structural components in civil aircraft.The SY series (such as SY-14) of AVIC Beijing Institute of Aeronautical Materials is a large family. In addition to the above-mentioned products, there is also SY-14, which can be used for a long time at higher temperatures (about 178 ° C), with high strength and good aging resistance. Suitable for aircraft components with higher operating temperatures, such as flaps.💡 Key considerationsIn practical selection and application, there are several key points that need special attention:Selection points: The choice of adhesive film mainly depends on the curing temperature (matching with the production process), mechanical properties (such as shear and peel strength), and surface density (i.e. thickness).Process matching: The adhesive film is usually not used in isolation and needs to be matched with specialized base adhesive (such as SY-D9 with SY-24C), foam adhesive (such as J-97), etc. to form a complete bonding system.Application environment: Different adhesive films have different long-term use temperature ranges. For example, SY-24C can reach -5570 ° C, while SY-14 can reach -55175 ° C, which needs to be selected according to the actual working environment of the component.Surface treatment: To achieve a strong and durable bond, cleaning and treatment of the bonded surface (such as degreasing, anodizing, etc.) are crucial

Teflon glass cloth tape

Teflon glass cloth tape.This is a composite tape that combines a high-performance coating of PTFE, a sturdy substrate of fiberglass cloth, and a high-temperature resistant silicone adhesive, making it the "high-performance armor" of industrial tape.Core three-layer structureCore role of hierarchical materialsSurface PTFE (polytetrafluoroethylene) is non stick, wear-resistant, chemical resistant, and has low frictionSubstrate glass fiber cloth provides strength, high temperature resistance, tear resistance, and dimensional stabilityBottom layer organic silicon pressure-sensitive adhesive resistant to high temperature bondingFive core characteristicsExcellent high temperature resistanceContinuous use: -70 ° C to+260 ° C.Short term peak: can withstand instantaneous high temperatures of up to 300 ° C.Stable physical properties at high temperatures, without melting or dripping.Excellent non stick and demolding propertiesAlmost all viscous substances (hot melt adhesive, resin, paint powder, food) cannot permanently adhere and are easy to clean.Strong chemical corrosion resistanceIt can resist the vast majority of acids, alkalis, solvents, and oils, protecting equipment from corrosion.Excellent mechanical performanceGlass cloth provides high strength, tensile strength, puncture resistance, wear resistance, and long service life.The surface friction coefficient is extremely low, suitable for situations that require sliding.Reliable electrical insulationIt can maintain good insulation performance even in harsh environments such as high temperature and humidity.Main application scenarios (by industry)Typical Industry ApplicationsElectronic and electrical high-temperature wire harness wrapping, iron base plate, heating tube insulation, circuit board wave soldering shieldingPackaging and plastic heat sealing machine knife wrapping (one of the main uses), plastic hot pressing molding demolding, conveyor belt anti stickingHigh temperature shielding protection for surface treatment spraying, electrophoresis, powder spraying, and welding splash protectionAnti sticking and high temperature resistant liners for the rollers of textile printing and dyeing hot stamping machines and shaping machinesFood industry baking conveyor belt, drying rack anti sticking (food contact compliance needs to be confirmed)General industrial repair or protective coating for corrosion resistance, wear resistance, and insulationHow to use it to achieve the best effect?This is the key to determining the lifespan and effectiveness of the tape.surface pretreatmentIt is necessary to ensure that the adhesive surface is absolutely clean! Oil free, dust-free, rust free, and water free.Thoroughly clean and air dry with solvents such as alcohol and acetone.Correct pasting processTemperature: The best bonding effect is achieved at room temperature or slightly above room temperature (such as 21 ° C-40 ° C).Method: Starting from one end, slowly pull and stick while applying pressure evenly with a scraper or hand to expel all bubbles.Overlap: If multiple splices are required, there should be an overlap of approximately 10-15mm.The crucial 'thermal curing'After pasting, do not immediately put it into peak high temperature use.Correct steps: Gradually raise the temperature to the working temperature (for example, first raise to 150 ° C and hold for 30 minutes, then raise to the working temperature), allowing the silicone adhesive to fully cure and form the strongest adhesive force.Maintenance and replacementRegularly inspect the surface for wear, scratches, or decreased adhesion.When the surface PTFE layer is severely worn and exposes the glass cloth, or loses its non adhesiveness, it should be replaced in a timely manner.Key points for purchasingCheck parameters: Focus on thickness, width, temperature resistance level, and peel strength.Choose color:Brown/Amber: The most common and universal type.White: Other fillers (such as titanium dioxide) may have been added, and the non stickiness may be slightly different, sometimes making it easier to detect stains.Sample testing: For critical applications, it is essential to first purchase small samples for testing under actual operating conditions.Brand recognition: Choose reputable industrial brands for more stable mon Problems and MisconceptionsQ: Can it be used for non stick pot repair?A: Not recommended! Although the materials are the same, household non stick pans require a dense, uniform coating and a strong bond with the substrate. Tape cannot meet the physical requirements for food safety and long-term cooking, and is prone to peeling off when exposed to high temperatures, posing a safety hazard.Q: Why does the newly applied tape curl or bubble when heated?A: The most common reason is that the surface is not clean or has not undergone "heat curing". Please strictly follow the above pasting and curing steps.Q: What is the difference between it and ordinary high-temperature resistant masking tape?A: A world of difference. Ordinary masking tape (such as washi tape) typically has a temperature resistance of no more than 200 ° C and is not resistant to chemical corrosion, tearing, low friction, or stickiness. Teflon glass cloth tape is a solution to meet extreme and multifunctional needs.If you can provide specific application scenarios (such as what devices are used for, what problems are solved, working temperature, and environment), I can provide you with more accurate selection and usage recommendations.

Transformer wrapped with glass cloth tape

Let's conduct a comprehensive and in-depth technical analysis on the topic of "transformer wrapped with glass cloth tape". This is a crucial insulating and structural material in the manufacturing of transformers, especially those used in medium and high frequency, high voltage, or special environments.The core definition of glass cloth tape for transformer wrapping is a strip-shaped composite material made from an alkali-free glass fiber cloth substrate, coated or impregnated with high-temperature resistant resin adhesive (such as acrylic, silicone, epoxy resin, etc.). It is not an ordinary tape, but a high-performance industrial insulation and structural fixing material.Main functions and features: Excellent electrical insulation: Glass cloth itself is an excellent insulator, which can effectively isolate the winding layers and turns, preventing high-voltage breakdown.Excellent high temperature resistance: This is its core value. Depending on the adhesive, it can withstand temperatures ranging from 130°C (Class B) to 200°C+ (Class H and above) for extended periods, meeting the requirements of transformers with different insulation levels.High mechanical strength and dimensional stability: Glass fiber cloth provides extremely high tensile strength and tear resistance. Under the effects of high temperatures and electromagnetic forces during transformer operation, it is not prone to deformation, shrinkage, or fracture, and can firmly secure the windings.Excellent impregnation property: The tape is typically designed with a porous or "open fiber" structure, facilitating the smooth penetration and filling of insulating varnish into all voids during the vacuum pressure impregnation (VPI) process of transformers, thereby forming a dense and robust overall insulation structure.Flame retardant and fire-resistant: Glass fiber, as an inorganic material, does not burn and can effectively prevent the spread of fire, enhancing the safety of transformers.Chemical resistance: It has good resistance to most solvents, oils (such as transformer oil), acids, and alkalis.The performance of tapes with key structures and material types is determined jointly by glass cloth and adhesive.1. Material of glass cloth substrate: E-glass, which has the best electrical insulation properties.Weave: Predominantly plain weave, with a stable structure.Handling:Open fiber cloth: After special treatment, the fiber bundles are spread out and flattened, resulting in a thinner, softer tape with better conformability and excellent impregnation permeability. It is the preferred choice for modern high-performance transformers.Plain fabric: undrawn, relatively thicker and stiffer.Thickness and weight: There are various specifications (such as 0.08mm, 0.10mm, 0.13mm) to meet different insulation thickness and mechanical strength requirements.2. Adhesive type (determining temperature resistance level and characteristics) Acrylic adhesive:Temperature resistance: Class B (130°C) to Class F (155°C) are common.Features: Strong adhesive strength, good initial adhesion, moderate price, and widest versatility.Silicone:Temperature resistance: Class H (180°C) to Class C (200°C+).Characteristics: High temperature resistance and elasticity, aging resistance, but relatively weak adhesive strength, and high price. Used in high temperature environments (such as electric vehicles, rail transit, and special power supplies).Epoxy resin adhesive (Epoxy):Temperature resistance: Class F (155°C) to Class H (180°C).Characteristics: After curing, it exhibits extremely high strength and good compatibility with impregnating varnish, making it commonly used in VPI processes that require final curing.Solvent-free adhesive: environmentally friendly, with low volatile organic compound (VOC) content.The core application in transformer manufacturing is interlayer and intersegment insulation: when winding coils, it is wrapped between different winding layers or segments, serving as the main insulation.Outer protection and bundling:Outermost wrapping: Securely tie the entire winding to prevent loosening and provide the final insulating protective layer.Lead wire fixation: Used for fixing and insulating transformer lead wires.End space filling and reinforcement: At both ends of the winding, it is used to fill the voids, reinforce the end coils, and prevent them from loosening due to electromagnetic forces.Insulation between the core and the frame: It is sometimes used to wrap the edges and corners of the core or as additional insulation for the frame.Select insulation grade that matches the usage points: Choose the tape with the corresponding temperature resistance based on the insulation grade (B, F, H, C, etc.) of the transformer patibility test: The adhesive tape must be fully compatible with the subsequently used impregnating varnish (varnish). It is necessary to test whether the varnish will degrade, blister, or reduce performance after being applied.Process requirements:Tensile rate and tension control: A constant and appropriate tension (controlled by a tension controller) needs to be applied during winding. If it is too loose, the binding will not be tight; if it is too tight, the tape may break or the coil may be damaged.Lapping ratio: Typically, a 1/2 or 1/3 bandwidth overlap is required to ensure full coverage without gaps.Softness and conformability: For coils with complex shapes, open fiber cloth tape is easier to handle.Thickness and width: Selected based on insulation distance and operational convenience.Certifications and Standards: Check whether the product has passed certifications such as UL, CSA, RoHS, and whether it complies with relevant industry standards such as IEC, NEMA, etc.Brief description of operation process: Preparation: Ensure that the coil surface is clean, dry, and free of burrs.Start: Fix the tape head on the winding at a certain angle and press it down.Winding: Start the winding machine or manually wind in a spiral manner with constant tension and a predetermined overlap ratio. Ensure the tape is kept flat and free of wrinkles.Ending: Wrap 1-2 extra turns at the end and press them down firmly. A small amount of glue or natural stickiness can be used to seal the end.Post-processing: After winding, the subsequent processes such as baking, vacuum impregnation, and curing are carried out.Well-known international brands: 3M (such as 3M™ 69 series), Von Roll, Isovolta, Nitto (Nitto).Domestic: Domestic enterprises such as Siwei Group, Dongcai Technology, and Chuangyuan New Materials also have mature product lines.The glass cloth tape used for transformer wrapping serves as the "skeleton" and "armor" of transformers, particularly high-frequency transformers, inductors, motors, transformers, and other electromagnetic components. It is not merely a simple binding, but also a crucial component of the insulation system, directly impacting the electrical safety, long-term reliability, heat dissipation, and mechanical strength of the product. Proper selection and application are the cornerstones for manufacturing high-quality and high-stability transformers.

防静电PI胶带

We specialize in anti-static PI tape. This is a high-end specialty tape that combines high temperature resistance, high insulation, and electrostatic discharge/shielding functions. It is a key material for protecting sensitive electronic components and ensuring production yield.The core overview is that anti-static PI tape is made by coating an anti-static adhesive on a high-performance polyimide film substrate, or by surface treating the substrate (such as coating with an anti-static coating).PI substrate: It is a "gold standard" high-temperature resistant insulation material, renowned for its excellent heat resistance, mechanical strength, and chemical stability.Anti-static function: Designed to address the issue of electrostatic discharge in electronic manufacturing, it prevents damage to integrated circuits, optoelectronic components, etc. by safely discharging or shielding electrical charges.Key Features and Advantages: Ultimate High Temperature Resistance:The PI substrate itself can withstand temperatures ranging from -269°C to 260°C for extended periods, and can endure temperatures exceeding 400°C for short periods. This enables PI tape to easily handle demanding processes such as reflow soldering, wave soldering, chip packaging, and high-temperature baking.Excellent electrical performance:In addition to being an excellent insulator (high dielectric strength), its anti-static version, through technical means, maintains its surface resistivity within a specific anti-static/static dissipation range (typically 10⁴ ~ 10¹¹ Ω/sq), ensuring that it neither accumulates charges due to insulation nor causes short circuits due to conductivity.Excellent mechanical and chemical properties:High strength, tear resistance, puncture resistance, and excellent dimensional stability.It is resistant to most organic solvents, acids, alkalis, and oils, and maintains stable performance even in harsh environments.Diverse ways to achieve functions:Surface anti-static type: An anti-static layer is only applied to the surface of the PI film, while the substrate itself remains insulating. It is primarily used for surface protection and isolation shielding.Overall anti-static type: The PI film itself or the adhesive has undergone special treatment, endowing the entire tape with anti-static properties. After bonding, it can form an electrostatic discharge channel.Key performance parameter: substrate: polyimide filmColor: Typically amber (tea color), but also available in black or customized colors.Thickness: Commonly seen thicknesses include 0.025mm, 0.05mm, 0.075mm, 0.1mm, etc., which are very thin and lightweight.Long-term temperature resistance: -269°C ~ 260°C (due to the inherent properties of the substrate, the temperature resistance of the adhesive is typically in the range of 180-200°C).Surface resistivity: This is the core indicator of anti-static performance.Electrostatic dissipation range: 10⁴ ~ 10¹¹ Ω/sq (the most common and practical range)Conductivity range: < 10⁴ Ω/sqInsulation range: > 10¹² Ω/sq (ordinary PI tape)Adhesive type: Silicone pressure-sensitive adhesive is the mainstream due to its best high-temperature resistance; there are also acrylic adhesives, etc.Main application scenarios (specific occasions to address electrostatic issues) PCB/PCBA manufacturing process protection:During the SMT (Surface Mount Technology) and wave soldering processes, it is used to cover gold fingers, specific solder pads, or connectors to prevent solder splatter and electrostatic discharge. After soldering, it can be easily peeled off without leaving any residual adhesive.Cover sensitive areas during circuit board testing and transportation.FPC (Flexible Printed Circuit) manufacturing:Used as a cover film or reinforcement plate for fixation, it protects the circuitry during high-temperature pressing (lamination) while also discharging static electricity.Semiconductor and chip packaging:Used for temporary fixation and protection in processes such as wafer cutting, chip mounting, and wire bonding, to prevent minor ESD damage that could lead to chip failure.Lithium battery manufacturing:Used for tab insulation and fixation during the winding or lamination process of battery cells, as well as insulation protection for battery packs, it meets both high temperature resistance and anti-static requirements, preventing internal short circuits.Aerospace and military electronics:Used for cable bundling, insulation, and static control in situations with extreme temperatures and high reliability requirements.Differentiating Features from Ordinary PI Tape and Other Tapes: Anti-static PI Tape, Ordinary PI Tape (Insulating), PET Tape Core Functions: High Temperature Resistance + Anti-static, High Temperature Resistance + High Insulation, High Strength Stability + Insulation Temperature Resistance Levels: Extremely High (260°C+), Extremely High (260°C+), Medium-High (120-150°C) Surface Resistance: 10⁴~10¹¹ Ω/sq (Controllable), >10¹² Ω/sq (Insulating), >10¹² Ω/sq (Insulating) Typical Uses: Anti-static solder masking, chip packaging, general high temperature insulation, electrical wrapping, screen bonding, nameplate pasting Pricing: Highest, Very High, Medium Buying Points and Brand References: Clarify Anti-static Level Requirements:Do you require electrostatic shielding (to prevent external electrostatic interference) or electrostatic discharge (to conduct away the charges generated by the product itself)? This determines the range of surface resistivity you need. The most common range is 10⁶~10⁹ Ω/sq.Confirm that the temperature resistance matches the process:What is the maximum temperature for your process? Can the adhesive withstand it? Silicone tape has good heat resistance but may have low initial adhesion; acrylic tape has strong adhesion but slightly inferior heat resistance.Pay attention to peel force and residual adhesive:Especially after solder masking applications, clean peeling without residue is required. Choosing a high-quality adhesive system is crucial.Other performance:Is UL certification (such as UL 94 V-0 flame retardant rating) required?Is solvent resistance (such as flux resistance) required?

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.

Teflon double-sided tape

Teflon double-sided tape. This is a very unique and high-performance industrial adhesive material that combines the excellent surface properties and double-sided bonding function of polytetrafluoroethylene (PTFE).1、 Core Structure and Material AnalysisThis type of tape can be seen as a "sandwich" structure:Core substrate (intermediate layer): Pure PTFE film or glass fiber reinforced PTFE composite material.The characteristics of Teflon: This is the core value of adhesive tape.Extremely low surface energy: "Non sticky" is extremely strong, and almost all substances are difficult to firmly adhere to its surface.Excellent temperature resistance: The long-term working temperature range is -200 ° C to+260 ° C, and the short-term can reach over 300 ° C.Excellent chemical inertness: resistant to corrosion from almost all strong acids, alkalis, and organic solvents.Excellent insulation: high dielectric strength.Extremely low friction coefficient: very lubricating.Two side adhesive layer: a special pressure-sensitive adhesive coated on both sides of the PTFE substrate. This is a technical key, as conventional adhesives are difficult to adhere to Teflon.Adhesive type: usually high temperature resistant silicone pressure-sensitive adhesive or fluorosilicone pressure-sensitive adhesive. They have undergone special treatment to form effective adhesion with PTFE surfaces, while also possessing excellent temperature resistance and chemical stability on their own.Release layer: Protect the release paper or release film on both sides of the adhesive surface.2、 Core features and advantagesCombining "non stickiness" and "strong stickiness": this is its greatest contradictory charm. The tape itself can strongly adhere to the surfaces of two objects (such as machine tables and molds), while its PTFE working surface provides long-lasting non stick and easy to clean properties.Ultra wide temperature resistance range: able to withstand extreme temperature environments ranging from deep cold to extremely high heat, with stable performance.Excellent chemical resistance: suitable for harsh environments with chemical splashes or repeated wiping with cleaning agents.Excellent electrical performance: suitable for electrical applications that require insulation and high temperature resistance.Wear resistance and durability: Glass fiber reinforced PTFE substrate has high mechanical strength and service life.3、 Main application areas (solving specific problems)Teflon double-sided tape is commonly used in special scenarios where both secure installation and non stick, high-temperature resistant, or easy to clean surface properties are required.Heat sealing, welding and packaging machinery:Sealing machine heat sealing tape: glued to the heating plate, using its non adhesiveness to prevent packaging materials (such as plastic bags) from melting and sticking to the machine, is the most classic application.Plastic welding equipment: a tool surface used for ultrasonic welding and hot plate welding.Mold and composite material processing:Release layer: affixed to the surface of the mold as a permanent or easily replaceable release layer, used for molding composite materials such as epoxy resin and polyurethane, greatly facilitating demolding.Protective layer: protects expensive mold surfaces from scratches and chemical corrosion.Food and chemical equipment:Stick to the inner walls of conveyor belts, workbenches, or hoppers to prevent sugar, grease, chemical raw materials, etc. from adhering and facilitate cleaning.Sealing gasket for reactor or pipeline interface (suitable adhesive type should be selected).Electronic and electrical manufacturing:As an insulating and non stick cushion layer in high-frequency welding (such as inductor coils) or high-temperature welding fixtures.Special components that require insulation and chemical resistance for fixation.Laboratory and General Industry:Stick it on the surface of the laboratory and workbench to create a corrosion-resistant and easy to clean workspace.The hot bed surface film of the 3D printer provides good adhesion and is easy to remove the model.4、 Key selection parametersSubstrate type:Pure PTFE film: softer and best non stick.Fiberglass reinforced PTFE: more rigid, wear-resistant, tensile resistant, dimensionally stable, and has high mechanical strength, making it a more common choice.Thickness: The total thickness (including adhesive layer) is usually between 0.08mm and 0.3mm. The thicker, the better the filling gap and buffering ability.Adhesive type:Silicone pressure-sensitive adhesive: the most common, with a wide range of high and low temperature resistance and good flexibility.Fluorosilicone pressure-sensitive adhesive: It has better chemical resistance and high temperature resistance, especially in non-polar solvents, and is more expensive.Temperature resistance level: Clearly define the long-term operating temperature and short-term peak temperature.Adhesive force: Confirm its peel strength to the target surface (such as stainless steel, aluminum, plastic).Certification: For food or medical related applications, it is necessary to confirm whether there are FDA, LFGB and other food contact safety certifications.5、 Common brands and precautions in the marketFamous brand:3M: For example, 3M 5490, 3M 5590H and other series are industry high standards.Saint Gobain, Desha, Nitto Denko, and others also have corresponding product lines.Domestic/professional brands: There are also multiple manufacturers in China producing products with high cost-effectiveness, and their performance needs to be carefully verified.Precautions for use:Surface treatment: Before pasting, ensure that the adhered surface is absolutely clean, dry, and free of grease, otherwise it will seriously affect the bonding effect and durability.Apply sufficient pressure: After pasting, use a roller or fixture to apply solid and uniform pressure to ensure sufficient contact.Bonding temperature: It is recommended to stick some products at room temperature (above 21 ° C) for optimal initial adhesion.Maintenance time: After bonding, it takes 24-72 hours to reach the maximum bonding force and avoid bearing the maximum load during this period.Removal: Designed for permanent or semi permanent bonding, removal is very difficult and often results in adhesive residue or damage to the substrate.summaryTeflon double-sided tape is an engineering material designed to solve special contradictions under extreme working conditions: it provides a "sticky" body and a "non stick" working surface.When your application scenario requires both:Firmly install a component onto the equipmentAnd the surface of this component must be resistant to high temperatures, anti sticking, anti chemical corrosion, and easy to clean

Purpose of glass cloth sandblasting tape

Glass cloth sandblasting tape, also known as sandblasting masking tape or anti-sandblasting tape, is a high-strength protective material specifically designed for demanding sandblasting (shot blasting) processes. Its core purpose can be summarized in one sentence: to provide sturdy and reliable masking for precision areas on the workpiece that do not require treatment or require absolute protection during the sandblasting process.The following are its detailed purposes, characteristics, and working principles:1. Main purposesProtect precision machined surfaces: protect threaded holes, precision bearing positions, fine grinding surfaces, sealing surfaces, etc., to prevent damage to dimensional accuracy and surface finish from high-speed sand particles.Selective area sandblasting: On large or complex workpieces, only specific areas (such as welding grooves) are subjected to sandblasting cleaning, while other areas (such as painted surfaces and polished surfaces) are protected.Protect non-metallic components: On the assembly, protect rubber seals, plastic parts, window glass, etc. to avoid being damaged or embedded by sand particles.Form clear boundaries: Create neat and sharp treatment boundaries in areas where different coatings need to be sprayed or local treatments are required.Temporary protection: Provides temporary wear-resistant protection during workpiece transfer or between processes.2. Core Features (Why it is competent)Completely different from ordinary tape, glass cloth sandblasting tape is designed to withstand extreme physical impacts:Extremely high wear and puncture resistance: The substrate is a tightly woven glass fiber cloth, which possesses exceptional strength and toughness. It can effectively resist repeated impacts and cutting from high-speed sand particles (such as steel grit, corundum, quartz sand, etc.) traveling at speeds up to hundreds of meters per second, making it less prone to puncture or tearing.Strong adhesion & clean peeling: Coated with a special strong acrylic adhesive, it can firmly adhere to various surfaces such as metal, plastic, and glass, without warping or falling off even under the vibration and impact of sandblasting. After sandblasting, it can be relatively cleanly peeled off with minimal residual adhesive.A certain degree of flexibility: The glass cloth substrate possesses a certain degree of flexibility, allowing it to conform to surfaces with slight curvature.Weather resistance: It usually has certain temperature resistance, moisture resistance, and UV resistance, and can adapt to different workshop environments.3. Typical application industriesNaval architecture and marine engineering: Protect the precision mating surfaces of propeller shafts and marine engines, and perform segmented sandblasting on the steel plates of the hull.Heavy machinery and steel structures: Before sandblasting for corrosion protection of large welded structural components (such as bridges, cranes, pressure vessels), protect flange faces, bolt holes, etc.Aerospace: Protect critical areas during local sandblasting strengthening or cleaning of aircraft components.Automobile manufacturing and maintenance: Especially when performing local sandblasting and rust removal on the frame and chassis, protect the surrounding components.Wind power industry: Protecting the precision surfaces of components such as wind turbine main shafts and gearboxes.Surface treatment and painting industry: This is its core application scenario, serving as the standard consumable for all high-quality pre-treatment (sandblasting) processes in spray painting.4. Difference between ordinary tape and the tape you have previously knownSimply put:Polyimide tape is a "fire-fighting suit" that protects against high-temperature flames.Glass cloth sandblasting tape is a "bulletproof vest" that protects against bullet impacts.5. Usage SuggestionsSurface cleaning: Ensure that the workpiece surface is dry, oil-free, and dust-free before pasting to ensure optimal adhesion.Pressing the edges: After pasting, be sure to press the edges of the tape firmly with a scraper or your fingers, especially at the corners, to prevent sand particles from cutting in from the edges.Timely peeling: After sandblasting, it is recommended to slowly peel off at a certain angle as soon as possible (before the adhesive is fully cured) to achieve the cleanest peeling effect.Specification selection: Based on sandblasting pressure, sand type, and roughness, select products with different thicknesses (such as 0.2mm, 0.3mm, etc.) and strengths.Summary: Glass cloth sandblasting tape is an essential tool in the surface treatment industry for achieving "selective sandblasting" and "precise protection". It ensures that critical parts of the workpiece remain intact through its own robust "sacrifice", and is a crucial link in guaranteeing the quality of subsequent coatings and product functionality.

Question and answer

Glass cloth double-sided tape

High temperature resistant glass cloth tape

High viscosity PET double-sided tape

PET transparent high-temperature masking tape

Golden Finger Tea Color High Temperature Resistant Insulation Tape

Glass cloth high-temperature resistant tape for shielding and protection

Finger tape

What is high-temperature tape? What are the main types and uses?

Masking tape

Purpose of glass cloth sandblasting tape

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