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Polyimide Tape

Your Professional Polyimide Tape Supplier
 

Hangzhou Weshare Import & Export Co.,Ltd. is a leading Chinese manufacturer and exporter of transformer components, electrical insulation materials and consulting company. Weshare founded in 2005 by one specialized sales in transformer accessories. Most of our products are used in oil and dry transformers, electrical motors, generators and electronic products.Our mission is to ensure appropriate product quality while satisfying the needs of our customers is our prime objective and represents the core principle of our business activities.

 

 
 
Why Choose Us

Quality Assurance

Certified by UL, SGS, and ISO9001, Weshare upholds stringent quality standards.

Extensive Experience

Weshare, since 2005, excels in transformer accessories and electrical engineering.

Export markets

With a strong focus on export markets, we have successfully captured significant market share in East Asia, North Europe, the Middle East, South America, Egypt, and East Africa. Our dedication to ensuring appropriate product quality while meeting customer needs is the cornerstone of our business philosophy.

Product Application

Our company boasts a wide array of products used in oil and dry transformers, electrical motors, generators, and electronic devices.

 

 

 

 
 
Advantages of Polyimide Tape
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Durability

Polyimide tape’s durability under extreme conditions means it can last longer than other types of tape, reducing the need for frequent replacements.

聚酰亚胺绝缘胶带

Precision

Its ability to maintain its shape and provide a clean, precise application makes it invaluable in precision work, particularly in electronics and aerospace applications.

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Versatility

The range of temperatures and conditions polyimide tape can withstand means it is suitable for a diverse array of applications, from high-tech industries to everyday uses.

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Cost-Effectiveness

While polyimide tape might be more expensive than other types of tape, its durability and effectiveness can lead to cost savings in the long run by reducing the need for frequent replacements and repairs.

 

Product Paramenters

 

Performance Dimension

Technical Advantages

Source of Verification Data (Please contact our sales team to obtain the complete report)

High Temperature Resistance

The bonding retention rate is > 85% after aging at 260°C for 168 hours.

TUV Thermal Aging Test Report

Chemical Resistance

Resistant to immersion in engine oil, acid mist, and IPA (no shedding after 72 hours)

Chemical Compatibility Test Video

Electrical Insulation

Volume resistivity > 1×10¹⁵Ω·cm (ASTM D257)

SGS Test Report

Flexibility

Elongation at break > 120% (ASTM D882)

Measured curve chart by the material testing machine

 

Types of Polyimide Tape

 

 

Silicone Adhesive

This is the standard and most common adhesive for polyimide tapes intended for high-temperature applications. Silicone adhesives share the polyimide film’s excellent thermal stability, maintaining strong adhesion across a wide temperature range, typically up to the film’s maximum continuous rating (around 260°C).

 

Acrylic Adhesive

While not rated for the extreme temperatures that silicone can handle (typically limited to around 150°C to 175°C), acrylic adhesives are sometimes paired with polyimide film. They offer advantages like cleaner removal with less residue compared to silicone after moderate heat exposure.

 

Other Adhesives

Less frequently, other specialty adhesives might be used for specific niche requirements, such as certain rubber-based formulas for specialized bonding or low-tack options for temporary holding with extremely easy removal.

 

 

Anti Static Polyimide Tape

The Properties That Set Polyimide Tape Apart

 

 

Heat Resistance

Polyimide tape can withstand temperatures ranging from -269°C to 400°C (-452°F to 752°F). This makes it invaluable in high-temperature applications where other tapes might melt or degrade.

Electrical Insulation

Its excellent dielectric strength allows polyimide tape to act as a superior insulator, making it ideal for use in electrical and electronic applications.

Chemical Resistance

Polyimide tape is resistant to a wide range of chemicals, including acids, bases, and solvents. This makes it suitable for use in harsh chemical environments.

Dimensional Stability

The tape maintains its shape and size even under extreme conditions, ensuring reliability in precision applications.

Adhesive Strength

The adhesive used with polyimide tape adheres well to various surfaces, including metals, plastics, and ceramics, ensuring a strong bond in demanding situations.

 

Polyimide Tape Types by Form Facto
 
 

Jumbo Rolls

Very large master rolls (e.g., 500mm or 1000mm wide, thousands of meters long) used by tape converters for slitting or die-cutting. Not typically sold directly to end-users.

 
 

Log Rolls

Wider rolls (e.g., 12 or 18 inches wide) cut down from jumbo rolls, often used by larger manufacturing operations that slit the tape in-house to specific widths as needed.

 
 

Slit Rolls

The most common form sold to end-users, these are rolls slit from wider logs or jumbo rolls into standard or custom narrow widths (e.g., 1/8 inch, 1/2 inch, 1 inch) and standard lengths (e.g., 33 meters, 36 yards).

 
 

Die-Cut Pieces

Polyimide tape can be precision die-cut into specific shapes, sizes, and patterns (e.g., circles, squares, complex outlines) on a release liner. This is ideal for masking specific areas on PCBs or components, creating custom insulators, or producing intricate parts for automated assembly, ensuring consistency and reducing manual labor.

 

 

Application of Polyimide Tape
 

Electronics and Electrical Engineering
One of the primary applications of polyimide tape is in the electronics industry. It is commonly used in the manufacturing of electronic components such as printed circuit boards (PCBs). The tape serves as an insulating layer that protects sensitive electronic parts from heat and electrical interference.

 

Aerospace Industry
The aerospace industry relies heavily on polyimide tape due to its ability to withstand extreme temperatures and harsh conditions. It is used for insulating wiring and components in aircraft and spacecraft. The tape’s heat resistance is crucial for applications that involve exposure to high temperatures, such as in the engine compartments of aircraft.

 

Automotive Sector
In the automotive industry, polyimide tape is used for a variety of purposes. It is often employed in the insulation of electrical components, such as wires and connectors, ensuring that they remain functional even under high-temperature conditions. Additionally, polyimide tape is used in the manufacturing of automotive parts that need to withstand high temperatures during the production process.

 

Industrial Applications
Polyimide tape is also widely used in industrial settings. It is employed as a masking tape in high-temperature processes, such as powder coating and anodizing. The tape's ability to withstand heat without leaving residue makes it ideal for protecting certain areas during these processes.

 

Medical Field
In the medical field, polyimide tape is utilized for its biocompatibility and resistance to sterilization processes. It is used in medical device manufacturing, particularly for applications where precision and cleanliness are crucial.

 

FAQ

 

Q: What are the advantages of polyimide?

A: Notably, numerous studies have shown that polyimides (PI) have excellent physical and chemical properties, including low weight, flame retardancy, high-temperature resistance, low-temperature tolerance, excellent mechanical properties, chemical solvent and radiation resistance, flexibility, and good dielectric ...

Q: What is the purpose of polyimide tape?

A: Known for its high-temperature resistance and excellent electrical insulation, this tape plays a crucial role in manufacturing and maintenance. From electronics to aerospace and automotive industries, polyimide tape is instrumental in ensuring that devices and machines function smoothly.

Q: What is the strength of polyimide tape?

A: Polyimide tape generally has a thickness of about 0.095mm without the liner, and 0.1mm with it, making it one of the thinnest insulators ever. The tape strength is about 200 kPa, with a dielectric strength of 6.5 kV. It uses a silicone adhesive to ensure the strongest stick. The adhesive strength comes in around 6N.

Q: Is polyimide an adhesive?

A: The semiconductor industry uses polyimide as a high-temperature adhesive; it is also used as a mechanical stress buffer.

Q: What is the shelf life of polyimide tape?

A: Storage and Shelf Life
The shelf life of 3M™ Polyimide Film Tape 5413 is 36 months from the date of manufacture when stored in original cartons at 21°C (70°F) and 50% relative humidity.

Q: Is polyimide stretchy?

A: Material properties
Polyamide fibers are also highly flexible with excellent elasticity. Even if you stretch them, polyamide fabrics typically return to their original shape. Because they're resistant to oils, these materials don't stain or hold odors easily, either.

As one of the leading polyimide tape suppliers in China, we warmly welcome you to wholesale high-grade polyimide tape made in China here from our factory. All our products are with high quality and competitive price.

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