China Double Side Polyimide Tape Manufacturers Suppliers Factory - Wholesale Service

Your Professional Double Side Polyimide Tape Manufacturer!

STK Tape was founded in 1998 and has been deeply rooted in the adhesive tape industry for over two decades. We specialize in high-performance adhesive solutions for electronics, LED lighting, automotive, medical, energy, aerospace, home appliances, textile, and industrial manufacturing sectors. With continuous innovation and a customer-focused mindset, we have become a trusted partner globally.Our factories integrate R&D, production, testing, and customization, supporting large-scale OEM/ODM projects with fast delivery and flexible capacity.

High-Temp Double-Sided Kapton Tape For PCB And Electronics Assembly
This double-sided Kapton tape is constructed with a polyimide film backing and silicone-based pressure-sensitive adhesive on both sides. It delivers strong shear resistance, exceptional thermal

Why Choose Us?

Advanced Equipment

STK Tape owns four modern production bases covering over 600,000 square meters, equipped with advanced clean rooms, high-precision coating lines, slitting machines, and state-of-the-art die-cutting facilities.

OEM/ODM

We provide a comprehensive portfolio of high-performance adhesive tape products and customized solutions to meet diverse industrial needs. Our offerings include world-renowned brands such as 3M, Nitto, and TESA original tapes, as well as precision-converted solutions tailored to customer requirements.

Production Market

STK exports to over 80 countries, and our products are widely recognized by global electronics, automotive, medical, and LED lighting manufacturers. We serve both multinational corporations and emerging local brands.

Our Certifications

We are certified with ISO 9001 and ISO 14001, ensuring that our products consistently meet global quality management and environmental protection standards.In addition, our products comply with major international certifications including REACH, RoHS, and UL, providing customers with safe, reliable, and environmentally friendly solutions for diverse industrial applications.

Product Parameters

Product Name	Double Side Polyimide Tape
Color	Amber
Material	Polymide
Width	5-500mm
Specification	Accept custom-made
Adhesion	Silicone
Tensile Strength (N/25mm)	≥140
Elongation (%)	≥40
Breakdown strength (N/25mm)	≥150
Voltage resistance (KV)	4
Adhesion (N/25mm)	≥4.5
Temperature Resistance (ºC)	-75 to +260 °C

Advantages of Double Side Polyimide Tape

Increased Bonding Strength

Double side polyimide tape provides a stronger bond between two surfaces compared to using two pieces of regular polyimide tape or other bonding methods. This is because the adhesive on both sides of the tape allows for a more uniform distribution of stress between the surfaces being bonded.

Easy to Use

Double side polyimide tape is easy to use and can be quickly applied to a surface without the need for additional tools or materials.

Saves Time

Double side polyimide tape can save time in the manufacturing process by eliminating the need for additional steps, such as applying adhesive separately to each surface and waiting for it to dry.

High-Temperature Resistance

Double side polyimide tape can withstand extremely high temperatures, making it ideal for uses where heat is a significant factor. It remains stable and does not melt or catch fire easily.

Electrical Insulation

Double side polyimide tape provides excellent electrical insulation, which is crucial for preventing short circuits and ensuring the proper functioning of electronic devices. It effectively protects wires and components from electrical interference.

Chemical Resistance

Double side polyimide tape resists many chemicals, which helps it last longer in harsh environments. This property is particularly beneficial in industries like aerospace and automotive, where exposure to various substances is common.

Versatile

Double side polyimide tape can be used in a variety of applications, such as attaching electronic components, bonding dissimilar materials, and mounting displays.

Applications of Double Side Polyimide Tape

Circuit board assembly: Double side polyimide tape is used in the assembly of electronic circuit boards to hold components in place during the soldering process. The high temperature resistance of the tape ensures that it does not melt or degrade during the soldering process.

Heat shield protection: Double side polyimide tape is used as a heat shield protection in high temperature applications such as in automotive engines and aerospace industries. The tape can provide a barrier to protect the surrounding components from heat damage.

Insulation: Double side polyimide tape is used as an insulation material in electrical applications. It provides a high dielectric strength and is able to withstand high voltage and current. The tape is commonly used in transformer and motor applications.

Optical applications: Double side polyimide tape is used in optical applications such as in the assembly of lenses and prisms. The tape provides a secure and durable bond that can withstand the high temperatures and humidity.

3D printing: Double side polyimide tape is used as a bed adhesive for 3D printing. The tape provides a flat surface for the printing material to adhere to and can be easily removed after printing.

High-Temp Double-Sided Kapton Tape For PCB And Electronics Assembly

Components of Double Side Polyimide Tape

Polyimide film (Substrate)

This is the base material of the tape, known for its exceptional high-temperature resistance (up to 400°C), excellent electrical insulation properties, and high mechanical strength.

Silicone adhesive

A heat-resistant silicone adhesive is applied to both sides of the polyimide film. This adhesive provides high adhesion to various surfaces, is durable under high temperatures, and can typically be removed cleanly without leaving residue.

Release Liner (Optional)

A release film or liner is placed between the two adhesive layers to prevent the tape from sticking to itself before application. It is easily removed to expose the adhesive for use in bonding applications.

High-Temp Double-Sided Kapton Tape For PCB And Electronics Assembly suppliers

Storage
1. Store under normal conditions of 10-30℃ and 40-70% R.H, out of direct sunlight.

2. Shelf life: 12 months from the date of manufacture when stored in initial packing.

Precaution Reminder
1. Surface should be clean, dry, free of dust, oil or other contaminants.

2. Proper pressure required by roller, hand or press when applying.

3. Avoid repeat sticking to prevent adhesion decrease.

Packaging and Shipping

Packaging

Inner packaging is plastic bags, outer packaging is cartons, and can also be packaged according to customer requirements.

Shipping

Sea or air freight according to your requirements.

FAQ

Q: What is your production lead time?

A: Delivery time is 7-15 days after order and deposit confirmation.

Q: Do you offer OEM, ODM, and custom services?

A: Yes, we support OEM and ODM services, such as printing your logo on release paper, plastic or paper cores, or packaging cartons, and we support cutting into various shapes and sizes.

Q: What are your payment methods?

A: We typically accept wire transfers, irrevocable limited liability companies. For regular orders, we prefer a 30% deposit before production and the balance before delivery. (We accept third-party inspections before delivery.)

Q: What kind of packaging do you provide?

A: Our products are packed in plastic bags for inner packaging, cartons for outer packaging, and plastic sheets or sheets for support panels. Custom packaging is also available.

Q: What is the difference between polyimide tape and Kapton tape?

A: Kapton tape is a brand name for a type of polyimide tape. Both are made from polyimide film, but Kapton is specifically a well-known, high-quality version, widely recognized in industries for extreme heat resistance and electrical insulation.

Q: What is the maximum temperature for polyimide tape?

A: Polyimide tape temperature ratings vary, with standard high-temperature versions typically withstanding up to 260°C (500°F), while some advanced grades can reach up to 350°C (662°F) or higher in short-term exposure. The specific rating depends on the tape's composition, especially the adhesive (commonly silicone-based), but the polyimide film itself offers excellent thermal stability.

Q: Is polyimide tape waterproof?

A: Polyimide film itself has extremely low water absorption (typically <0.5%), and even in humid or high-humidity environments, it will not swell, deform, or lose performance. Combined with a high-temperature silicone adhesive, the tape maintains stable adhesion even in high-temperature and humidity cycles.

Q: Does polyimide tape conduct electricity?

A: They are often used in applications that require good chemical resistance or high temperature resistance. Polyimide tapes act as excellent electrical insulators, are thin and conformable, and have outstanding tear resistance at elevated temperatures.

Q: What is polyimide tape made of?

A: Polyimide tape, also known as PI tape and brown high-temperature tape, is made by manufacturers using polyacrylonitrile plastic film (PI) as a substrate and coating it with organic silicone or improved acrylic pressure-sensitive adhesive.

We're professional double side polyimide tape manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale customized double side polyimide tape from our factory.

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