Wholesale China Heat Resistant Sublimation Thermal Tape - Polyimide PCB Tape Suppliers & Factory for High Temperature Insulation Manufacturer, Factories

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Color: Available in heat-resistant silicone and Amber, with custom options in black. Roll core sizes can be customized to 76mm and 38mm.

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Features: Our products are designed with heat resistance, high voltage insulation, and excellent resistance to acids and alkalis. They are also suitable for low voltage electrolytic applications.

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Usage: These silicone products are essential for protecting the golden fingers of PCB boards during soldering in tin furnaces. They provide insulation for coils, wave-soldering protection, and high-temperature electrical insulation. Notably, they leave no residue upon removal, ensuring a clean finish.

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If you are looking for reliable China suppliers and factory-direct products for your insulation and protection needs, our premium silicone materials are your best choice.

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Product Description

Product Name Model No Film Thickness (mm) Total Thickness (mm) Adhesion to Steel (N/25mm) Tensile Strength (kg/25mm) Elongation at Break (%) Temperature Resistance (โ„ƒ) Equivalent
Polyimide tape HY200-1A 0.015 0.030 2.8 10 25-35 260 -
HY200-1B 0.015 0.035 3.5 10 25-35 260 -
HY200-2A 0.025 0.042 2.5-3.5 10-13 45 260 -
HY200-2B 0.025 0.050 4.0 10-13 45 260 3M98C-12
HY200-2C 0.025 0.055 5.0 10-13 45 260 -
HY200-2D 0.025 0.060 5.5 10-13 45 260 3M7413D
HY200-2E 0.025 0.065 6.0 10-13 45 260 -
HY200-2F 0.025 0.070 6.5 10-13 45 260 3M98C-1
HY200-3A 0.050 0.080 6.0 20 55-65 260 -
HY200-3B 0.050 0.100 6.5 20 55-65 260 -
HY200-4 0.075 0.120 6.0 28 60-65 260 -
HY200-5 0.100 0.150 6.0 36 70-75 260 -
HY200-6 0.125 0.180 6.0 40 80-85 260 -
HY200-2DA 0.025 0.060 5.0 10-13 45 260 -
HY200-2DB 0.025 0.060 5.0 10-13 45 260 -
Polyimide tape (often called Golden Finger Tape) is the core category of special adhesive products, with high temperature resistance, acid and alkali resistance and strong insulation, which is suitable for high-end manufacturing scenes and meets the high requirements of special adhesives. Its uses cover many core fields such as electronics and new energy. The specific categories are as follows:
Electronic and Electrical Industry (Core Application Field)

This is the main use of polyimide tape, which adapts to the strict requirements of precision electronic manufacturing, especially to the processing requirements of high-end electronic components.

๐Ÿ”Œ Circuit Board (PCB) Processing

The core use is gold finger protection. After the plug-in end (gold finger) of the circuit board is plated with gold/tin, adhesive tape is applied to prevent corrosion and contamination during welding and electroplating. After welding, no residual glue can be easily peeled off โ€” necessary for PCB process. Also used for local shielding protection during wave soldering and reflow soldering.

โšก Insulation & Fixation of Electronic Components

Adapts to resistors, capacitors, inductors, chips and other components for pin insulation and solder joint shielding to avoid short circuit. Can also fix electronic flat cables and wire harnesses โ€” resistant to high temperature, no harmful substances released, suitable for internal wiring of high-end electronic equipment.

๐Ÿ”‹ Lithium Battery Manufacturing

In the processing of soft-package and cylindrical lithium batteries, used for battery lug insulation and battery wrapping and fixing. Can withstand the high-temperature process during battery packaging, with electrolyte corrosion resistance to ensure safety and stability.

๐Ÿ›ก๏ธ High-Temperature Electronic Process Shielding

When spraying, baking and sandblasting electronic components, used to shield and protect the parts that do not need to be treated. Can withstand high temperature โ€” no residual glue and no damage to the substrate after shielding.

New Energy Industry (High-Growth Application Field)

Meet the high requirements of the new energy industry for temperature resistance, weather resistance and insulation, and adapt to the manufacture of high-end new energy products.

โ˜€๏ธ Photovoltaic Modules

Used for shielding protection when photovoltaic cells are welded in series. Resistant to high-temperature welding, ultraviolet rays and high-low temperature cycles to meet the long-term use requirements of outdoor photovoltaic modules. Also used for insulation and sealing assistance of assembly frames and junction boxes.

๐Ÿš— New Energy Vehicles

Used in on-board motors and electronic control systems for line insulation and protection of high-value components.

๐Ÿ”ฉ Power Battery Packs

Inside the power battery pack, used for insulation and isolation between batteries and modules. Can withstand the high and low temperature and vibration environment when the car is driving.

๐Ÿ’ง Hydrogen Energy Equipment

Used for shielding and insulation in high-temperature processes when the core components of fuel cells are processed. Can withstand the corrosion of hydrogen environments and ensure the stability of the equipment.

Industrial Manufacturing and Processing Field

Suitable for all kinds of industrial high-temperature processes, with strong universality and customization requirements.

๐Ÿญ Metal Processing

When metal parts are sprayed, electrophoresed and electroplated at high temperature, used for shielding and protecting the non-processed surfaces โ€” can withstand high temperature and does not react with metal substrates. Also used for surface protection of metal stamping and bending to prevent scratching.

๐Ÿงฑ Processing of Plastics and Composite Materials

When high-temperature resistant plastics and carbon fiber composite materials are molded, used for mold shielding and product positioning. Can withstand high molding temperatures โ€” no residual glue after peeling to ensure surface smoothness of products.

๐Ÿ”ฅ High-Temperature Baking and Curing

Used to cover the parts that don't need curing in the high-temperature baking and curing process of various products (such as hardware, plastics and coatings). Can withstand the high temperature and adapt to different baking processes.

Other Niche High-End Uses
๐Ÿ”ฌ Semiconductor Manufacturing

Used for wafer surface shielding and pin insulation in semiconductor wafer cutting and packaging processes. Can withstand high packaging temperatures with high cleanliness and no dust pollution.

๐Ÿฅ Medical Equipment

Used in high-end medical instruments (such as high-temperature sterilization equipment and precision diagnostic instruments) to insulate and fix internal electronic components. Can withstand high-temperature sterilization processes and meets medical-grade environmental protection standards.

๐Ÿท๏ธ High-Temperature Label Substrate

Some polyimide tapes can be used as high-temperature resistant label substrates for labels that need to be kept in high-temperature environments for a long time (such as engine and boiler parts).

Complement the core adaptation advantages (fitting the properties of special adhesive customization and benchmarking):

Wide Temperature Range Excellent Insulation Acid & Alkali Resistant Salt Fog / UV Resistant No Residual Glue
โš™๏ธ Core Characteristics Support

Wide temperature range, excellent insulation, acid and alkali resistance / salt fog / ultraviolet resistance, peeling without residual glue โ€” benchmarking international similar high-end products.

๐ŸŽฏ Customized Adaptation

Products with different thickness, viscosity and temperature resistance can be customized according to the needs of different industries to adapt to different processes and scenarios. At the same time, they have cost advantages and a cost performance ratio higher than that of international brands.

Frequently Asked Questions
Q What is polyimide tape and why is it called "Golden Finger Tape"?
Polyimide tape is a high-performance adhesive tape made from a polyimide film substrate coated with a silicone or acrylic adhesive. It is commonly called "Golden Finger Tape" because one of its primary uses is protecting the gold-plated connector edge (the "gold finger") of printed circuit boards (PCBs) during soldering and electroplating processes. Its golden-amber color also contributes to the nickname.
Q What is the maximum temperature resistance of polyimide tape?
All models in our polyimide tape range (HY200 series) are rated for continuous use up to 260ยฐC. This makes them suitable for demanding high-temperature processes including wave soldering, reflow soldering, high-temperature baking, and battery pack manufacturing โ€” without losing adhesion or leaving residual glue on the substrate.
Q How do I choose the right polyimide tape model for my application?
The right model depends on your specific requirements. Key parameters to consider include: Film Thickness (ranging from 0.015mm to 0.125mm), Total Thickness (0.030mm to 0.18mm), Adhesion to Steel (2.8 to 40 N/25mm), and Tensile Strength. For light PCB masking, thinner models like HY200-1A or HY200-2B are ideal. For heavy-duty industrial or battery applications requiring higher tensile strength, HY200-5 or HY200-6 are recommended. Contact us for a customized recommendation.
Q Are your polyimide tapes equivalent to 3M products?
Yes. Several models in our HY200 series are designed as direct equivalents to popular 3M polyimide tapes. For example, HY200-2B is equivalent to 3M 98C-12, HY200-2D is equivalent to 3M 7413D, and HY200-2F is equivalent to 3M 98C-1. Our products offer comparable performance with a more competitive cost structure, making them a cost-effective alternative for high-volume manufacturing.
Q Does polyimide tape leave residual glue after removal?
No. One of the key advantages of our polyimide tape series is its clean removal without residual adhesive. Even after exposure to high temperatures (up to 260ยฐC), the silicone-based adhesive system is engineered to peel away cleanly without leaving glue residue on PCBs, metal parts, plastic components, or other sensitive substrates โ€” ensuring surface integrity and product quality.
Q Can polyimide tape be customized for specific industrial requirements?
Absolutely. We offer full customization of polyimide tape products including adjustments to film thickness, total thickness, adhesion level, tensile strength, width, and roll length. Custom formulations for specific temperature resistance ranges, chemical environments (e.g., electrolyte resistance for lithium batteries, hydrogen resistance for fuel cells), or special surface treatments are also available. Please contact our technical team with your application details for a tailored solution.

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