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

What is the thickness of Ruili polyimide tape?

The thickness options for Ruili polyimide tape (commonly known as "gold finger tape") are quite extensive, primarily ranging from a total thickness of 0.03mm to 0.15mm. Specifically, it can be further categorized into the following common grades:Common total thickness specifications (substrate + adhesive layer)Ultra-thin type:0.03mm - 0.04mm: Extremely thin, suitable for precision masking where space and flexibility are highly critical, such as fine circuitry or micro-component protection.Standard universal type:0.05mm - 0.06mm: This is the most commonly used and best-selling specification. It strikes an optimal balance between high temperature resistance, puncture resistance, flexibility, and ease of operation, and is widely used in electronic and electrical insulation, high temperature painting/spraying masking, lithium battery manufacturing, and more.Enhanced thickening type:0.07mm - 0.09mm: Provides better mechanical strength, insulation performance, and solvent resistance, suitable for harsher environments or scenarios requiring multiple masking.0.10mm - 0.15mm: This type of tape is classified as heavy-duty, boasting excellent puncture resistance, wear resistance, and cushioning properties. It is commonly used for insulation in high-power motors and transformers, or in situations where extremely strong physical protection is required.Key concept: composition of total thicknessThe total thickness of polyimide tape is composed of two parts: the "substrate (polyimide film)" and the "adhesive (usually silicone or acrylic adhesive)".Substrate thickness: Common thicknesses of polyimide film substrates include 0.0125mm, 0.025mm, 0.0375mm, 0.05mm, 0.075mm, etc.Adhesive layer thickness: Depending on the type of adhesive and coating process, the thickness of the adhesive layer ranges from a few tenths of a millimeter to several millimeters.Total thickness = base material thickness + (adhesive layer thickness × 2, if it is double-sided adhesive).Main series and typical thicknesses of Ruili polyimide tapeThe Ruili product line is typically categorized by color and function, with each series having its own featured thickness:Amber (tea) series:It is the most common, with high temperature resistance and excellent performance (typically -40°C ~ 260°C).Typical thicknesses: 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.10mmBlack series: Typically featuring enhanced weather resistance, shading properties, and UV resistance.Typical thicknesses: 0.06mm, 0.07mm, 0.08mmWhite series: commonly used in situations requiring color identification or reflection.Typical thickness: 0.05mm, 0.06mmSpecial Note: For the specific application of plasma spray masking, it is recommended to use products with a thickness ranging from 0.06mm to 0.08mm. This thickness range offers sufficient resistance to particle impact and ablation, while ensuring good fit and easy peelability.

Water soluble double-sided tape

Water soluble double-sided tape, also known as "water soluble" or "re wettable" double-sided tape, is a special type of tape that can be rendered adhesive and achieve environmentally friendly separation by water.It is composed of water-soluble substrates (such as specialty paper, non-woven fabric) and water-soluble adhesives (usually modified acrylic acid), which can decompose or dissolve when exposed to water. Its core advantage lies in the ability to avoid non water soluble materials from polluting the recycling system, ensuring resource reuse.Application areas: from industry to daily lifeThe application of water-soluble double-sided tape is mainly divided into two categories: industrial grade and civilian grade.⚙️ Industrial sector (mainly paper and printing industry)Paper Flyover/Automatic Splicing: Used in high-speed production of roll paper to connect new and old paper rolls, the tape can be completely dissolved in the subsequent pulp making process without affecting pulp quality and equipment.Rolling and sealing: Fix the paper on the core or stick the tail of the roll to ensure no residue and no impact on recycling.🧵 In the civilian/handmade field (mainly Japanese brands such as Clover Cola)Temporary fixed fabric: used to temporarily fix fabrics, lace, zippers, etc. during *ing. After *ing, they can be removed by soaking in water to avoid thread removal or fabric damage.Making a water-soluble embroidery substrate: As a base for embroidery, it dissolves in water after completion, leaving only exquisite embroidery pieces.Other applications: It can also be used for medical sealing, environmentally friendly packaging, special anti-counterfeiting labels, etc.Mainstream brands and productsInternationally renowned tape brands all offer water-soluble product lines, mainly serving the industrial market.Tesa: Provides a comprehensive product line, such as the CaRes series and EasySplice series, some of which use patented calcium resistant technology to adapt to hard water environments. In the series, there are pure adhesive films without substrates (such as tesa) available ® 51916), as well as paper substrates (such as tesa) ® 51914) and other options.3M: Its water-soluble tape (such as the R996 series) adopts a double-layer design, and the tape itself can be directly peeled off from the lining for easy operation.Nitto (Nitto): Model number 509A, made of non-woven fabric substrate, suitable for automatic splicing in papermaking.Clover: mainly targeting the handicraft market, the product is compact and specifically designed for temporary fixation of fabrics.Other: There are also Orafol (such as ORAFIX) on the market ® 12885), Sharktope, and numerous domestic brands to choose from.Key technical parametersWhen purchasing, please pay special attention to the following indicators:Solubility: Pay attention to its repeatability, which means whether it can be fully decomposed in water without producing clumps.Adhesive force: Water soluble tape usually has high initial adhesive force to meet the needs of temporary fixation.Temperature resistance: Different products have significant differences in temperature resistance. 3M R996 tape can withstand high temperatures up to 204 ° C for a short period of time, while ordinary products may only be used at room temperature.PH adaptability: Some products (such as tesa) claim to dissolve well within the pH range of 3 to 9.Selection and usage precautionsClear application scenarios: Industrial applications should choose models with high adhesion and rapid dissolution; For manual use, attention should be paid to whether it is suitable for specific fabrics and whether there is no residue after *ing.Pay attention to environmental certification: Check whether the product meets FDA (Food and Drug Administration) food contact level standards or TAPPI (Pulp and Paper Industry Technical Association) re pulp standards to ensure environmental safety.Storage conditions: It must be stored in a cool and dry place to avoid the performance degradation of the tape caused by high temperature and humidity.In summary, the core advantage of water-soluble double-sided tape lies in its ability to separate from water, mainly serving the industrial sector that pursues environmental protection and efficient production, and playing an important role in fine handicrafts.

Acrylic foam double-sided tape

Acrylic foam double-sided tape "is a very important category of industrial tape, which combines high-performance acrylic adhesive with foam substrate to create a bonding solution with excellent comprehensive performance. It is irreplaceable by traditional liquid adhesives and ordinary tape in many fields.Below is a comprehensive analysis of its structure, characteristics, types, applications, and selection points.1、 Core Structure and Working Principle: A Exquisite 'Sandwich'Foam substrate (intermediate layer):Material: Usually polyurethane foam, polyethylene foam, or acrylic foam. Each material varies in softness, density, temperature resistance, and solvent resistance.Core functions:Buffer and shock absorption: absorb impact and vibration energy, protect adhesive components.Filling gaps: capable of filling small unevenness, gaps or tolerances between two adhesive surfaces, achieving full surface contact, which is not possible with hard tape (such as PET tape).Stress dispersion: Uniformly dispersing the adhesive force over a larger area, reducing stress concentration caused by thermal expansion, contraction, or deformation, and improving long-term reliability.Sealing: It has a certain degree of dust, moisture, and sound insulation effects.Adhesive layer (upper and lower layers):Material: High performance acrylic pressure-sensitive adhesive.Core advantages:Excellent weather resistance: resistant to ultraviolet rays, oxygen, and moisture, long-term outdoor use (such as cars, outdoor signs) will not easily yellow, powder, or lose stickiness, and the lifespan can reach several years or even more than ten years.Excellent adhesion: Strong creep resistance under sustained stress, not easy to slip or detach.Wide material adaptability: It has good initial and final adhesion to various materials such as metal, plastic, glass, sprayed surfaces, composite materials, etc.Wide temperature range: The working temperature range can usually reach -40 ℃ to 90 ℃ or even higher.Release paper/film (protective layer): High weight release paper is usually used, which is convenient for manual or die-cutting processing.2、 Main features and advantages (compared to traditional tape/glue)Excellent comprehensive performance: balancing high adhesive strength, elastic cushioning, and long-term durability.Easy and efficient construction: tear and paste immediately, no need for mixing or curing, clean and odorless, can greatly shorten assembly time and improve production efficiency.Solving complex problems: particularly adept at handling bonding scenarios with uneven surfaces, large thermal expansion differences, and vibrations.Beautiful appearance: The tape thickness is uniform, and it looks neat and tidy after installation, achieving a "seamless" installation.3、 Main types and application areasAccording to the performance focus of foam substrates and adhesives, they are mainly divided into the following categories:Universal acrylic foam tape:Features: Balancing viscosity, thickness, and cost. Foam has a medium density and good compression resilience.Application: The most common. Used for indoor and outdoor signage installation (such as acrylic letters, metal letters), decorative strip fixation, lightweight building material assembly, and household appliance bonding.VHB ® (Very High Bond) tape (a representative product of 3M, which has become synonymous with the industry):Features: Ultra high strength acrylic foam tape. Its high bonding strength can directly replace mechanical fastening methods such as rivets, screws, and spot welding in many applications, achieving "structural bonding".Applications: fixing metal panels for building curtain walls, assembling elevator cars, assembling refrigerated truck cars, bonding heavy machinery equipment panels, and installing interior parts for rail transit.Ultra thin/medium thick foam tape:Features: Thickness between 0.2mm and 1.0mm, used in situations where small gaps need to be filled and a smooth appearance is required.Application: Internal components of mobile phones/electronic products (fixing batteries, buffering FPC/PCB, filling gaps for dust prevention), film switches, medical device assembly.Flame retardant foam tape:Features: The foam substrate and adhesive have undergone special treatment and meet the UL94 V-0 flame retardant rating.Application: Places with strict fire prevention requirements, such as elevator interiors, public transportation interiors, and electrical cabinets.Thermal/conductive foam tape:Thermal conductive type: Adding thermal conductive particles to the adhesive layer or foam, used in situations that require heat dissipation and shock absorption fixation, such as the installation of certain LED modules and power devices.Conductive type: Provides electromagnetic shielding (EMI/RFI) function for grounding and shielding of electronic device enclosures.4、 How to choose and use key pointsClarify the bonding object: the most important step. Confirm that the surface energy of two materials (such as painted metal glass and plastic wall) directly affects the bonding effect.Evaluate the usage environment:Indoor or outdoor? Outdoor use must choose acrylic adhesive with excellent weather resistance.Are there any drastic temperature changes, ultraviolet radiation, humidity, or chemicals present?Is there continuous vibration or impact?Determine key performance requirements:How strong adhesive force is needed? Lightweight decoration or heavy-duty structure?How much gap do I need to fill? Select the appropriate thickness of foam based on the unevenness or tolerance of the bonding surface.Do you need any special features? Such as flame retardancy, thermal conductivity, and electrical conductivity.Surface treatment: crucial! Ensure that the adhered surface is clean, dry, free of oil, dust, and rust. The best cleaning effect is achieved using isopropanol (IPA).Construction pressure and time: After pasting, sufficient pressure (such as compacting with a roller) should be applied to ensure that the tape is in full contact with the surface. The adhesive strength will reach its maximum value over time (usually 24-72 hours).Test first: Before large-scale application, it is necessary to conduct small sample testing in real materials and environments to verify long-term reliability.5、 The core difference from PET double-sided tapeCharacteristics: Acrylic foam double-sided tape, PET double-sided tapeBase material core elastic foam (three-dimensional structure) hard polyester film (two-dimensional plane)Main functions include filling, buffering, shock absorption, and sealing, while also achieving high initial adhesion and fast bonding on a flat surface with high-strength bonding, and ensuring dimensional stabilityProficient in handling uneven surfaces, tolerances, and shock absorption scenarios, skilled in precise fitting and fixing of smooth and flat surfacesTypical thickness is relatively thick (0.2mm-3.0mm or more) and very thin (0.025mm-0.2mm)Soft to the touch, compressible and hard, incompressibleSummary: PET double-sided tape is like a "tough film", while acrylic foam tape is a "tough sponge". The former is suitable for precise and smooth "surface contact", while the latter is suitable for "body contact" in complex working conditions.summaryAcrylic foam double-sided tape is a revolutionary engineering adhesive material that solves many problems of traditional mechanical fixation and liquid adhesives in terms of shock absorption, sealing, stress management, and construction convenience through its unique "combination of rigidity and flexibility" structure. From the internal fixation of high-end smartphones to the installation of curtain walls in skyscrapers, itspresence is everywhere.

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.

High-temperature resistant and flame-retardant glass cloth tape

"High-temperature resistant flame-retardant glass cloth tape" shares the same core substrate (glass fiber cloth) and flame-retardant characteristics as the previously discussed "insulating flame-retardant glass cloth tape", but the emphasis in naming is different, which usually implies subtle differences in product formulation and performance.In simple terms:Insulating flame-retardant glass cloth tape: It emphasizes electrical insulation performance and is a professional term in the field of electrical engineering.High-temperature resistant flame-retardant glass cloth tape: It stands out for its ability to withstand extreme temperatures and is commonly used in high-temperature industrial environments.In many cases, the two are of the same type of product, as the glass cloth substrate itself possesses both insulation and high temperature resistance properties. However, the prefix "high temperature resistant" often implies a more extreme pursuit of high temperature performance in terms of glue formulation and overall design.In-depth analysis of the "high temperature resistance" characteristic: Compared to the standard model, the high temperature resistant model typically exhibits superior performance in the following aspects:Different adhesive formulas:Standard type: It mostly adopts flame-retardant rubber-based pressure-sensitive adhesive or ordinary acrylic adhesive, with a long-term temperature resistance of about 130℃-150℃.High temperature resistant type: Typically, high-performance silicone pressure-sensitive adhesive or special acrylic adhesive is used.Silicone series: This is the top-tier choice, with a long-term temperature tolerance of up to 180°C - 220°C and a short-term tolerance of over 260°C. It maintains good viscosity at high temperatures, but the cost is relatively high.Special acrylic series: Through modification, its heat resistance is enhanced, with a long-term heat resistance up to 150℃ - 180℃, offering a high cost-performance ratio.Performance focus:High-temperature viscosity retention: Under continuous high temperatures, the adhesive tape will not melt, drip, or lose its viscosity.High temperature non-residue: After experiencing a high temperature cycle, it is not easy to leave behind residue that is difficult to clean when removed.Stable performance after thermal aging: After prolonged exposure to high temperatures, the adhesive tape can still maintain a certain level of strength, flexibility, and flame retardancy.Core application scenarios (highlighting "high temperature resistance") Due to its excellent temperature resistance, it is particularly suitable for the following fields with stringent temperature requirements:Insulation layer binding and sealing for high-temperature pipelines and equipment: such as steam pipelines and thermal pipelines in power plants and chemical plants.Protection during welding and sandblasting operations: Protect the adjacent areas of the workpiece from damage caused by welding slag, sparks, and abrasives.Around the engine and exhaust pipe: protection and fixation of wire harnesses in the engine compartment of cars and motorcycles, and auxiliary fixation of the exhaust pipe insulation layer.Cable organization near heat sources: Bundling and protection of cables near equipment such as boilers, heaters, and ovens.High-temperature manufacturing process of electronic products: such as temporary protection or shielding of specific components during the reflow soldering and wave soldering processes of circuit boards.Aerospace: Thermal insulation and protection of equipment near the engine compartment.When selecting key indicators for "high temperature resistance", in addition to paying attention to the general flame retardant rating (UL 94 V-0), thickness, and strength, special attention must be paid to the following temperature parameters:Long-term operating temperature: The continuous operating temperature range clearly indicated in the product specification (e.g., -40℃ to +200℃). This is the most important indicator.Short-term peak temperature: The highest instantaneous temperature that can be withstood and its duration.Type of adhesive: It is important to specify whether it is "silicone adhesive" or "acrylic adhesive", as this directly determines the temperature resistance level and price.Thermal aging test report: High-quality products will provide performance change data after being placed at the nominal high temperature for hundreds of hours.Summary and Comparison Features High-temperature Resistant Flame-retardant Glass Cloth Tape (Ordinary) Insulating Flame-retardant Glass Cloth Tape Core Emphasis Reliability under Extreme Temperature Environments Electrical Insulation Safety and General Flame-retardant Typical Adhesive Systems Silicone Pressure-sensitive Adhesive, Special Acrylic Adhesive Ordinary Flame-retardant Acrylic Adhesive, Rubber Adhesive Long-term Temperature Resistance Usually Higher (such as above 180°C) Usually within the Standard Range (130°C-150°C) Main Cost Adhesive Cost High Relatively Low Applicable Scenarios Welding Protection, High-temperature Pipes, Engine Compartments, etc. Wire and Cable Insulation Binding, General Fire Protection In Simple Terms: If your work environment involves continuous high temperatures (such as exceeding 150°C), then you must choose a product that is clearly labeled as "high-temperature resistant" and uses silicone as the adhesive system. If it is used in a conventional electrical environment or general high temperatures (below 130°C), a standard insulating flame-retardant glass cloth tape is sufficient.Please make a judgment based on your specific usage temperature and scenario. If you need more specific advice, please provide more details.

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.

Polyimide composite tape

Polyimide composite tape. This is an indispensable "engineering grade" high-performance tape in extreme environments and high-end applications.Core concept: Why do we need 'composite'?Ordinary polyimide tape (such as commonly known as "gold finger tape" or Kapton tape) is usually a single-layer polyimide film+single-sided organic silicone. And "composite" tape is a multifunctional and integrated solution formed by combining polyimide film with other functional materials (such as foam, fiberglass cloth, thermal conductive materials, other adhesive layers, etc.) through precision coating or bonding processes.Core concept: Combining the excellent inherent properties of polyimide (high temperature resistance, high insulation, high strength) with the complementary properties of other materials (buffering, filling, thickening, thermal conductivity) to solve complex application problems that cannot be solved by a single material.Core advantages of polyimide (PI) film (composite basis)Ultimate high temperature resistance: Long term use temperature can reach over 260 ° C, short-term can withstand high temperatures above 400 ° C, and physical properties are stable at this temperature, without melting or dripping.Excellent electrical performance: high dielectric strength, top-notch insulation material, excellent corona resistance.Excellent mechanical properties: high tensile strength, good toughness, bending resistance, and excellent dimensional stability (low coefficient of thermal expansion).Chemical stability: resistant to most organic solvents, oils, and acids.Flame retardancy: typically meets UL 94 V-0 mon Composite Structures and ApplicationsThe following are several typical polyimide composite tape structures:1. PI film+foam+adhesive layerThis is one of the most common composite structures, typically consisting of three or more layers: PI film (surface material)+adhesive+foam (intermediate layer)+adhesive+release paper.Features and advantages:PI film: provides high-strength "skin", responsible for high temperature resistance, insulation, puncture resistance, and solvent resistance.Foam (commonly used silicone foam, polyimide foam, or acrylic foam): provides cushioning and shock absorption, fills gaps, absorbs stress, compensates for tolerances, and improves sealing performance.Double sided adhesive tape: achieves firm bonding.Application Scenario:New energy vehicle battery pack: The insulation, buffering, and bonding between battery cells require insulation, fire resistance, and long-term earthquake resistance.High end motors/transformers: Insulation and fixation between coil windings must withstand high temperatures and electromagnetic vibrations.Consumer electronics: providing insulation, buffering, and certain thermal conductivity gaskets for heating elements (such as CPUs) in limited spaces.Aerospace equipment: The installation of instruments and meters requires shock absorption, insulation, and resistance to extreme temperature cycles.2. PI film+reinforcement material (such as fiberglass cloth)Composite PI film with glass fiber cloth to form an ultra-high strength composite material.Features and advantages:PI film: provides insulation and temperature resistant substrate.Fiberglass cloth: greatly enhances mechanical strength, tear resistance, dimensional stability, and puncture resistance.Application Scenario:Slot insulation and phase to phase insulation for heavy-duty motors and generators.Cable bundling that requires extremely high mechanical protection and insulation.PCB board edge reinforcement.3. PI film+thermal conductive materialComposite thermal conductive silicone or thermal phase change material on PI film to make insulating thermal conductive gasket.Features and advantages:PI film: provides electrical insulation barrier, which is a critical safety requirement.Thermal conduction layer: Conducts heat from heating elements such as IGBTs and power MOSFETs to the heat sink.Application Scenario:Power electronic module: Achieve efficient heat dissipation while ensuring high voltage insulation.Insulation and heat dissipation of heating elements in high-frequency communication equipment.4. Reinforced composite of double-sided/single-sided tapeEven as a tape, its structure may be composite. For example:Back material composite: Using PI film as the substrate for double-sided tape to provide high temperature resistance.Adhesive layer composite: using a double-layer adhesive system, such as one layer of high initial adhesive and one layer of high holding adhesive, to optimize performance.The core value brought by "composite"Functional integration: A single material simultaneously solves multiple problems such as insulation, buffering, bonding, sealing, and thermal conductivity, simplifying design and assembly.Reliability improvement: Designed for specific harsh working conditions (high temperature+vibration+high voltage), the system reliability far exceeds simply stacking multiple single materials.Space optimization: Achieve more complex functions with thinner overall thickness, saving valuable equipment space.Process simplification: reduce assembly steps, lower labor costs, and improve production efficiency.How to choose polyimide composite tape? ——Key considerationsClarify the primary and secondary contradictions: What is the main threat in your application environment? Is it high temperature, high voltage insulation, mechanical vibration, or heat dissipation? This determines the focus of the composite structure.Structural decomposition: Request specific structural layer diagrams from suppliers to understand the material, thickness, and function of each layer.PI film thickness: commonly 12.5 μ m, 25 μ m, 50 μ m, etc., determine insulation and mechanical strength.The material and density of the intermediate layer, such as the foam material (silicone, PI foam) and density (kg/m ³), directly affect the buffering and sealing performance.Adhesive type: high temperature resistant organic silicone (>200 ° C) or high-performance acrylic adhesive (lower temperature resistance but stronger adhesion)?Key performance parameters:Temperature resistance level: Long term/Short term.Flame retardant rating: UL 94 rating.Dielectric strength: kV/pression deformation: For structures with foam, this is important and affects long-term sealing performance.Thermal conductivity: For thermal conductive products.Environmental tolerance: Is it necessary to be resistant to cold and hot shock, moisture and heat aging, specific chemicals, or UV?Certification and Compliance: Material certification is crucial in fields such as automotive (such as USCAR), aviation, and rail transit.Main brands and marketsInternational leaders:3M: The product system is very comprehensive, such as a series that combines PI film and foam.Rogers: Leading in technology for high-temperature foam and composite materials.Tesa, Nitto, Saint Gobain, and others all have corresponding high-performance composite product lines.Excellent domestic suppliers:With the development of new energy and high-end manufacturing, many domestic enterprises are able to produce high-quality PI composite tapes/gaskets, especially in the field of new energy vehicle battery pack applications, where the process of localization substitution is fast.summaryPolyimide composite tape is a smart crystallization of materials engineering. It is no longer a simple adhesive or insulation material, but a systematic solution designed to cope with extreme multi physics environments. When choosing, it is necessary to start from the system requirements, communicate deeply with the supplier's R&D personnel, provide specific operating parameters, and conduct strict long-term reliability testing to ensure that this high-performance material can truly realize its "1+1>2" composite value.

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.

PET high-temperature resistant tape

Not just high temperature resistance, but also high value: Ruili PET high temperature resistant tape, your all-around industrial protection expertIn the world of industrial manufacturing and packaging, we often face such a choice: to pursue ultimate performance or to control precious costs? Is there a product that can perfectly balance the two, achieving the best of both worlds?Rely Tape gives you a positive answer - Rely PET high-temperature resistant tape redefines the standard of efficient protection with excellent cost-effectiveness.The resilient body originates from the engineering wisdom of PETUnlike expensive specialty materials, Ruili's high-temperature resistant PET tape uses high-quality polyester (PET) film as its base material. This is not a compromise, but a precise engineering choice. It endows the tape with:Strong mechanical properties: Excellent resistance to stretching, tearing, and puncturing, ensuring robust and durable protection even on rough surfaces, sharp edges, and in harsh handling environments.Excellent balance between rigidity and flexibility: it ensures a crisp and smooth fit during application, facilitating manual or machine operation, while also conforming to various curved surfaces.Stable chemical inertness: It can effectively resist the erosion of various chemicals and solvents, protecting the substrate from contamination."High temperature resistance" is not just a slogan, but a reliable promiseDespite being positioned as high cost-effective, we never compromise on the core performance of "high temperature resistance". Ruili PET high temperature resistant tape, after undergoing special processing, can withstand temperatures up to 130℃ for extended periods, and can even reach a short-term peak temperature of 150℃.This enables it to cope with the situation with ease:Shielding protection during wave soldering and reflow soldering of electronic components.In the manufacturing of household appliances, such as ovens and microwave ovens, processes like painting and baking involve maskinThe bundling and protection of automotive wiring harnesses are designed to withstand the high-temperature environment surrounding the engine compartment.Precision masking during product sandblasting and painting.Fixing and protection in the manufacturing process of lithium batteries.Precise adhesion, solely for "protection" and not for "destruction"We are well aware that the residue left after tearing is one of the biggest troubles. Ruili's high-temperature resistant PET tape utilizes an improved acrylic adhesive, achieving:Adhesive and firm: It adheres firmly during processing, making it less prone to edge warping and detachment.Removing cleanly: Within a reasonable temperature and time range, there is no residual adhesive left after removal, ensuring the protected surface remains clean and aesthetically pleasing.Wide application: suitable for surfaces of various materials, such as metal, plastic, glass, coatings, etc.Why is Ruili PET high-temperature resistant tape your wise choice?Excellent cost-effectiveness: While meeting the needs of most medium and high temperature applications, it effectively controls production costs for you and maximizes value.Wide application adaptability: from electronic manufacturing to the automotive industry, from product packaging to building decoration, one adhesive serves multiple purposes, making it a "versatile" addition to your inventory.Enhancing operational efficiency: Reliable performance reduces downtime, rework, and waste in the production process, ensuring smooth operation of your production line.Choosing Ruili is not just choosing a product, but also embracing an efficient and pragmatic production philosophy.We do not pay for unnecessary performance excess; we only provide the most reliable solutions for practical production needs. Ruili PET high-temperature resistant tape is a perfect embodiment of this philosophy.Ruili Tape - Manufactured with precision "core", ensuring stability "with the tape".

Question and answer

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