FH/FHF Resin Kapton Tape Polyimide Film

FH/FHF insulation kapton tape is made of polyimide film coated with polyperfluoroethylene propylene resin (F46, FEP) on one side (FH) or both sides (FHF)and sintered at high temperature. This film combines the char-acteristics of polyimide film and fluorine plastic, is resistant tohigh and low temperatures, is not easy to burn, and has flameretardancy reaching UL-94 V0 level.

Similar to DuPont Kapton® FN technology, this product is designed for extreme temperatures and harsh electrical environments, achieving a perfect combination of high-temperature resistance, superior electrical insulation, and heat-sealing capabilities. It is an ideal solution for modern high-end motor, electronics, and aerospace industries.

Structure and Types

Raw material: Polyimide (PI) film

• Provides extremely high thermal stability, operating continuously within a temperature range of -269°C to +260°C (peak short-term up to 400°C).

• Possesses excellent mechanical strength, tear resistance, and dimensional stability.

• Has outstanding dielectric properties, making it a highly efficient electrical insulator.

Functional Coating: Fluorinated ethylene propylene (FEP) resin

Provides heat-sealing and heat-bonding capabilities, melting at specific heating temperatures (typically around 290-370°C) to form a strong and reliable seal with itself or other materials.

Enhances the overall material's chemical resistance, flame retardancy, and aging resistance.

Product Model Differentiation

• FH Type: Single-sided FEP coating. Suitable for applications requiring single-sided bonding of the insulation layer to a conductor or other substrate.

• FHF type: Double-sided FEP coating. Provides double-sided heat-sealing capability, suitable for interlayer insulation, encapsulation, or complex structures requiring double-sided bonding.

Key Features and Benefits of FH/FHF Kapton Tape:

1. Extreme Temperature Resistance: Maintains stable performance in extremely cold and sustained high temperatures of 260°C (500°F) without melting or embrittlement.

2. Superior Electrical Insulation: High dielectric strength effectively prevents electrical breakdown under high voltage or harsh conditions, ensuring equipment safety.

3. Heat-Sealing Without Additional Adhesives: Forms a clean, non-volatile, and strong bond through heating and pressurization, eliminating the degradation, overflow, or contamination problems associated with traditional adhesives at high temperatures.

4. Excellent Chemical and Environmental Stability: Resistant to most oils, solvents, fuels, and acids/alkalis, with UL 94 V-0 flame retardant rating.

FH/FHF Kapton® Tape is not just a material, but a reliable solution for challenging extreme conditions. It combines the toughness of polyimide with the sealability of FEP, providing engineers with the ultimate tool for achieving compact and reliable designs in high-temperature, high-insulation environments.