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

Polyimide tape

What is polyimide tape?Polyimide tape is made of polyimide film coated with high-temperature resistant silicone adhesive. It is renowned for its ultimate high-temperature resistance and excellent electrical insulation properties.Main FeaturesExcellent high temperature resistance: this is its core advantage.Long-term temperature resistance: It can typically operate continuously within the temperature range of -269°C to +260°C for extended periods.Short-term temperature resistance: It can withstand instantaneous high temperatures of up to 400°C.Non-melting and non-dripping: It will not melt, flow, or drip at high temperatures, maintaining its physical and electrical properties.Excellent electrical insulation: It has extremely high dielectric strength (breakdown voltage), making it an ideal insulating material in the field of electronics and electrical engineering.Excellent chemical stability: It can resist the erosion of most solvents, oils, and chemicals, with the exception of strong alkalis.Excellent dimensional stability: Under extreme high and low temperature cycling, its dimensional change rate is very small, and it will not shrink or stretch due to temperature changes.Flame retardancy: It inherently possesses a flame retardant rating of UL 94 V-0, self-extinguishing upon removal from a flame.Environmentally friendly and non-toxic: It will not decompose and produce toxic substances at high temperatures."Comparison with glass cloth tape" This is a very common question. To understand it more clearly, let's make a comparison:Characteristics: Polyimide tape: Glass cloth tape substrate: Polyimide film: Glass fiber cloth Appearance/hand feel: Usually amber (golden translucent), with a smooth and soft surface: White or depending on the coating color, with a cloth-like texture, relatively rigid Temperature resistance: Excellent (long-term above 260°C): Good (long-term 150-200°C) Mechanical strength: Good (good tensile resistance, but edges are prone to tearing): Excellent (excellent tensile and tear resistance) Thickness: Very thin (commonly 0.03mm-0.08mm): Relatively thick (commonly 0.13mm-0.25mm) Main advantages: Ultra-thin, high temperature resistance, insulation, dimensional stability: High strength, wear resistance, heat insulation, cushioning Main uses: Precision electronic insulation, protection: High temperature shielding, heavy bundling, pipeline insulation and fixing Simple summary: Polyimide tape is more like a "delicate scholar", an expert in extreme temperature and insulation; while glass cloth tape is like a "strong craftsman", superior in mechanical strength and physical mon types are primarily distinguished based on the adhesive and adhesive backing treatment methods:Single-sided polyimide tape: the most common type, with silicone adhesive on one side.Double-sided polyimide tape: Both sides are adhesive, used for bonding and fixing components in high-temperature environments.Polyimide film without adhesive backing: used as the substrate for manufacturing flexible printed circuits (FPC).Polyimide tape treated with fluororesin: It has lower surface tackiness and is specifically designed for solder masking. After soldering is completed, it can be easily peeled off without leaving any residue.Main application areasElectronic manufacturing and SMT (Surface Mount Technology):Wave/reflow soldering masking: Protecting gold fingers, connectors, or specific areas from being soldered when the circuit board passes through the soldering furnace.Figure 1: High-temperature protection for wave soldering masking application: Protecting nearby sensitive components during soldering and maintenance processes.Flexible Printed Circuit (FPC):As a reinforcement plate, covering film, or temporary fixing material in the manufacturing process.Coil and transformer:Used for interlayer insulation and bundling of motors, transformers, and inductive coils, especially for high-frequency transformers.Aerospace and Military:It is used for bundling, heat insulation, and insulation of high-temperature cables due to its lightweight and reliable performance.Other industrial fields:Thermal insulation for sealing of heat sealing machines; precise masking for high-temperature painting and powder coating.

Friction resistant PTFE high-temperature cloth tape mold compression protection

Friction resistant PTFE high-temperature cloth tape is an industrial tape that combines the excellent non adhesiveness of PTFE with the high strength of glass fiber cloth. It is designed specifically for anti sticking, insulation, and wear resistance requirements in high temperature, high pressure, and high wear environments.It is commonly referred to as PTFE high-temperature tape or PTFE fiberglass tape, made by coating PTFE on fiberglass cloth. Compared with ordinary PTFE film tape, its core characteristics emphasize more on mechanical strength and wear resistance.Core technical parametersFor your convenience in evaluation, the following are the key performance indicators and common specifications of this type of tape:Characteristic Typical Parameters/Specification DescriptionLong term temperature resistance: -70 ℃ to 260 ℃Short term: can reach 280 ℃ -300 ℃ and maintain stability in a wide temperature range, suitable for high temperature conditions.Wear resistant composite glass fiber cloth with high tensile strength (such as 900 N/100mm) is the outstanding advantage of this type of tape. Fiberglass base fabric provides excellent mechanical strength and tear resistance, making it more durable in friction and scratch environments.The extremely low friction coefficient of 0.05-0.1 gives it excellent "non stick" properties, which can effectively prevent material adhesion and assist in sliding.Excellent anti adhesion performance, PTFE coating surface hardly adheres to any substances, including glue, resin, oil stains, etc., making it easy to clean.Excellent corrosion resistance, able to resist corrosion from strong acids, strong bases, and various organic solvents, with high chemical stability.High electrical insulation and dielectric constant<2.6 can be applied in scenarios that require electrical insulation protection.The conventional thickness of 0.08mm to 0.5mm is a key parameter affecting wear resistance and service life, which can be selected according to the application mon colors: brown, black, white, blueOther features include fire resistance, flame retardancy, UV protection, and anti-static. Some products also have these additional functions to adapt to more special environments.Main application areasBased on its characteristics of wear resistance, high temperature resistance, and anti sticking, it is mainly applied in the following scenarios:Packaging and heat sealing industry: used for hot pressing sealing end faces of bag making machines and sealing machines to prevent the packaging film from melting and sticking to the heating block, ensuring sealing quality and production efficiency.Industrial rollers and drying drums: Covering the surface of drying drums in papermaking, printing and dyeing, bonding and other equipment to prevent material adhesion and protect the drum surface from wear and tear.Electronic and electrical insulation: As an H-grade (above 180 ℃) temperature resistant insulation material, it is used for wrapping and insulation protection of coils and cables.Thermoplastic mold demolding: The liner is placed on the mold or heating plate as a demolding medium, making it easy for the formed plastic or composite products to detach without the need for demolding agents.Chemical anti-corrosion lining: used as an anti-corrosion and wear-resistant lining for chemical pipelines, reaction vessels, hoppers and other equipment to protect the equipment substrate.Aerospace: Can be used as a liner for aerospace molds to meet the high temperature and high-precision demolding requirements.Main brands and market reference pricesThere are multiple brands in the market that offer this type of product, and the following are reference information from several mainstream manufacturers:Typical brand models/series reference prices (example) Remarks3M 3M ™ PTFE 5451 and 5453 are internationally renowned brands with high prices (usually measured by roll), stable performance, and offer a variety of width and length specifications.Tesa (tesa) tesa ® 4800 is a high-performance adhesive tape designed by Desha specifically for demolding applications, with a relatively high price (usually calculated by roll), emphasizing mechanical stability and wear resistance.NITTO (Nitto) No.903UL, No.973UL approximately ¥ 143/roll (10m long) is a Japanese brand with a high market share and a rich product line, offering a variety of widths and thicknesses to choose from.Domestic manufacturers such as Qiaorui, Giant Adhesive Tape, and SKF offer high cost-effectiveness at around ¥ 10-35 per roll (10m in length) and flexible customization of specifications, making them widely used in the domestic industrial market.Summary: Friction resistant PTFE high-temperature cloth tape is an industrial tape that integrates multiple properties such as high temperature resistance, wear resistance, anti sticking, and insulation. It is an effective solution to solve the problems of material adhesion and wear under high temperature conditions

What kind of tape is resistant to high temperatures and leaves no residue

Market share of Ruili adhesive tape

1. Market positioning and qualitative analysis of market shareIn the Chinese adhesive tape market, particularly in the industrial tape segment, Ruili can be categorized as either a "mainstream domestic brand" or a "leading brand in the second tier"Tier 1 (International giants): 3M (US), tesa (Germany), Nitto (Japan), Sekisui (Japan), etc. They dominate the high-end market and lead in technology, brand, and profit share.The second tier (leading domestic brands): includes a group of strong local enterprises such as Ruili, Yongda, Jinghua, Fenghua, and Huaxia. Ruili is one of the representative brands with high popularity and a relatively complete product line.Third tier: numerous regional small and medium-sized factories, focusing on the low-end market and price competition.Conclusion: In the entire Chinese adhesive tape market, Ruili may rank among the top in terms of sales volume share, but there is still a gap between its sales revenue and profit share and that of the first-tier international brands. In niche markets such as high-temperature resistant tape and industrial insulation tape, its sales volume share is likely to be considerable.2. Key factors affecting its market shareAdvantages (helpful for increasing market share):High cost-effectiveness: This is its core competitiveness, meeting the needs of the vast majority of cost-sensitive industrial customers.Channel expansion and broad coverage: Through a vast network of distributors and e-commerce platforms, it can penetrate into various levels of markets, from factories to hardware plete product line: Able to provide a "one-stop" procurement solution, increasing customer loyalty.Local services provide quick response: they are more flexible than international brands in terms of customized needs, delivery schedules, and after-sales services.Weaknesses (limiting its expansion into high-end markets):Low brand premium: In high-end and high-reliability application fields, customers still tend to choose international brands.R&D and material science accumulation: There is a gap between China and international giants in terms of self-research capabilities in top-notch adhesive formulations and high-end substrates (such as specialty films and foam).Standards and certification: Although the basic certifications are complete, the certification in some of the most stringent industry standards (such as automotive, aerospace, and long-term medical equipment) may not be as comprehensive as that of leading brands.

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

When choosing a high-temperature resistant tape for your industry, you'll want to consider the following key factors to ensure that the tape you choose will meet industry-specific needs: Temperature tolerance: Determine the required temperature tolerances according to the industry application environment. Use temperature ranges vary widely from industry to industry, so when choosing a high-temperature tape, the first step is to determine the maximum temperature that the tape can withstand. Generally speaking, the temperature range that high-temperature tape can withstand is between-40 °C and 1000 °C, but the specific range depends on the type and brand of tape. Material properties: Select tapes with specific material characteristics according to industry requirements. For example, some industries may require tape to have good chemical or corrosion resistance. Common high temperature resistant tape materials include polyimide, silica gel, glass fiber and fluoroplastics, each of which has different characteristics, such as heat resistance, insulation, corrosion resistance and so on. Viscosity: Make sure the selected tape adheres firmly to the desired surface and remains stable in high-temperature environments. Choose tapes with strong stickiness and high temperature tolerance to ensure they don't lose their stickiness at high temperatures. Dimensions: Choose the appropriate width and length of the tape according to the specific application requirements. Different industries and applications may require different sizes of tapes, so you need to choose according to the actual situation. Additional function: Choose the appropriate width and length of the tape according to the specific application requirements. Different industries and applications may require different sizes of tapes, so you need to choose according to the actual situation. In conclusion, choosing a high-temperature resistant tape that is suitable for your industry requires consideration of multiple factors, such as temperature tolerance, material characteristics, stickiness, size, and additional characteristics. By taking these factors into account comprehensively, the most suitable high temperature resistant tape can be selected to meet the needs of the industry.

High temperature flame retardant PTFE tape

High temperature flame retardant PTFE tape is a high-performance industrial tape made of polytetrafluoroethylene (PTFE) as the core material, which has multiple characteristics such as high temperature resistance, flame retardancy, insulation, and anti adhesion.It is widely used in fields such as food packaging, electronics and electrical, plastic processing, and industrial roller protection due to its excellent performance.Core features and parametersHeat resistance: This is its most prominent feature. The long-term temperature resistance of conventional products is -70 ℃ to 260 ℃, and they can withstand high temperatures above 300 ℃ in the short term. Some improved products can withstand temperatures up to 290 ℃ in the long term and up to 320 ℃ in the short term.Fireproof and flame retardant: As the core concern of users, high-quality flame-retardant PTFE tape will pass strict flame retardant testing. For example, NITOFLON in Nitto ™ The No.903UL model has obtained UL510A flame retardant standard certification, which is a strong proof of its fire resistance performance.Anti stick and easy to clean: The surface is extremely smooth, the friction coefficient is low (can be as low as 0.1), and it hardly sticks to any substance. Even if the plastic melts at high temperatures, the residue can be easily removed, making it very suitable for heat sealing machinery.Chemical stability: able to withstand corrosion from strong acids, strong bases, and various organic solvents.Electrical insulation: It has extremely high insulation performance, with a breakdown voltage of up to 8kV to 15kV, effectively preventing leakage.Physical strength: Products based on glass fiber cloth have high strength, stable dimensions, and low elongation coefficient.Product TypeAccording to the substrate and structure, it can be mainly divided into two categories:Glass fiber cloth reinforced type (mainstream): The substrate is glass fiber cloth coated with PTFE. High mechanical strength, wear-resistant, suitable for industrial scenarios that require high durability, such as roller wrapping and adhesive tape for heat sealing machines.Pure PTFE film type: The substrate is pure PTFE turned film. Good flexibility, better adhesion, outstanding electrical performance, suitable for insulation of high-frequency electronic components.Specification referenceThe following table lists common specifications and price ranges in the market, which can be used as a preliminary reference:Common Range/Type of Parameter Items Product Examples/RemarksTotal thickness 0.08mm-0.5mm Common thicknesses include 0.08mm, 0.13mm, 0.18mmWidth 10mm -1250mm, commonly available for cutting 13mm, 19mm, 25mm, etcLength of 10m -50m can be customized according to needsColors: Yellowish brown, brown, black, white. Some white models are specifically designed for special food packaging or the electronics industryMain application scenariosPackaging machinery: widely used in plastic bag heat sealing equipment for food and medicine, utilizing its anti stick and heat-resistant properties to prevent molten packaging materials from sticking.Industrial protection: Suitable for various high-temperature rollers and heating plates, providing anti sticking, wear-resistant, and corrosion-resistant protective layers to extend equipment life.Electronic and electrical: Utilizing its excellent insulation performance and flame retardancy, it can be used as an insulation layer for high-temperature coils, capacitors, wires and cables, and some models can be used as N-grade insulation materials.Thermoplastic demolding: pasted onto molds, hoppers, and other components, utilizing its low friction and non adhesive properties to make the thermoplastic formed product easy to demoldProcurement and usage suggestionsPay attention to certification: If there are high requirements for flame retardancy, manufacturers should be requested to provide authoritative flame retardant rating reports or certifications (such as UL 510 standards) when purchasing, rather than relying solely on verbal promises.Determine specifications: Based on the usage scenario, specify the required thickness, width, and length. For complex surfaces, choose thinner products to achieve better adhesion; For high wear environments, thicker types should be selected.Follow the instructions for use:Installation: Ensure that the adhesive surface is clean, dry, and free of oil stains to ensure optimal adhesion.Temperature: Strictly adhere to the upper temperature limit of the product. Long term over temperature use can accelerate tape aging, affecting adhesion and other properties.Storage: It is recommended to store in a dry, dark, and room temperature (such as 10-30 ℃) environment, avoiding high temperature and high humidity

Polytetrafluoroethylene (PTFE) tape

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

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.

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.

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 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

What is the thickness of Ruili polyimide tape?

What kind of tape is resistant to high temperatures and leaves no residue

Market share of Ruili adhesive tape

How about Ruili high-temperature resistant tape?

PET high-temperature resistant 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