1. Product Introduction of Polyimide Tape

Polyimide tape, also known as Kapton tape or commonly referred to as "gold finger tape," is made from polyimide film and coated with high-performance organic silicon pressure-sensitive adhesive. It offers excellent properties such as high and low-temperature resistance, acid and alkaline resistance, solvent resistance, electrical insulation (H-class), and radiation protection. It is suitable for applications such as shielding during wave soldering of electronic circuit boards, protecting gold fingers, high-end electrical insulation, motor insulation, and fixing the positive and negative terminals of lithium batteries.

The tape features a polyimide film base with a single-side coating of high-performance organic silicon pressure-sensitive adhesive. It can be supplied with or without fluoroplastic release material. The coating precision achieves ±2.5 µm, with no scratches or streaks, excellent shear properties, and easy die-cutting. It has outstanding high-temperature resistance and solvent resistance.

2. Features and Applications of Polyimide Tape

• In the Electronics and Electrical Industry: It is used for high-demand H-class motor and transformer coil insulation, high-temperature coil end insulation and fixation, temperature sensor protection, capacitor and wire bundling, and other high-temperature bonding insulation applications.

• In PCB Manufacturing: The tape is used for electronic protection and is particularly suitable for SMT temperature protection, electronic switches, PCB gold finger protection, electronic transformers, relays, and other electronic components requiring high-temperature and moisture protection. Special formulations include low-static and flame-retardant versions.

• High-Temperature Surface Protection: It is used for masking metal materials during high-temperature spray painting and sandblasting. After high-temperature spray baking, it can be easily removed without leaving residue.

Polyimide tape features high-temperature resistance, high tensile strength, excellent chemical resistance, no adhesive residue, and compliance with ROHS environmental standards for halogen-free materials. It is ideal for protecting gold fingers during reflow soldering, shielding during wave soldering, and providing high-temperature insulation for various electrical and electronic applications.

3. Technical Parameters of Polyimide Tape

1. Base Material: Polyimide film
2. Color: Amber
3. Width: 3mm to 500mm
4. Length: Fixed at 33M
5. Thickness: 0.040mm
6. Elongation: 50%
7. Tensile Strength: ≥42N/25mm
8. Adhesion: ≥26N/25mm
9. Initial Adhesion: 24#
10. Permanent Adhesion: 48H