Polyimide Tape with Liner Guide – Benefits, Uses & Applications

What is Polyimide Tape with Liner?

Polyimide tape with liner (also called Kapton tape with release liner) is a high-performance adhesive tape consisting of:
✔ Polyimide film backing – Offers extreme heat resistance (up to 260°C/500°F) and electrical insulation13
✔ Silicone adhesive – Provides strong bonding while allowing clean removal1
✔ Protective liner – A removable layer (typically PET or paper) that prevents adhesive contamination before use3

This combination makes it ideal for precision industrial applications where controlled application and residue-free removal are critical.

Key Benefits of Polyimide Tape with Liner

1️⃣ Precision Application & Handling

• The liner allows pre-cutting into custom shapes before adhesive exposure, perfect for automated assembly3.

• Prevents adhesive contamination during storage and handling.

2️⃣ Superior Thermal Performance

• Withstands -73°C to 260°C (–100°F to 500°F) without degrading1.

• Ideal for reflow soldering, wave soldering, and high-temp masking110.

3️⃣ Clean Removal & No Residue

• Silicone adhesive removes cleanly even after high-temperature exposure1.

• Unlike acrylic adhesives, it won’t carbonize or leave sticky residues4.

4️⃣ Static Control (Low-Peel Voltage)

• Some variants (like 3M™ 5433) are low-static, protecting sensitive electronics from ESD damage3.

Top Applications of Polyimide Tape with Liner

🔌 Electronics Manufacturing

✔ PCB gold finger masking – Protects contacts during soldering10.
✔ Flex circuit reinforcement – Secures delicate traces in foldable devices.

🚀 Aerospace & Automotive

✔ Wire harness insulation – Resists engine heat and vibration.
✔ Thermal barrier tape – Shields sensors and wiring in extreme environments.

⚡ Energy & Industrial

✔ Battery terminal insulation – Prevents short circuits in Li-ion packs10.
✔ Powder coating masking – Withstands high-temp curing processes.

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