Heat Resistant ESD SMT Heat Sublimation Electrical Insulation Silicone Adhesive Polyimide Kapton Masking Tape for PCB Wave Soldering Battery 3D Printing

Polyimide tape, also known as PI tape or Kapton tape, is a high-performance insulating and masking tape designed for extreme environments. With excellent heat resistance, chemical stability, and electrical insulation, it is widely used across electronics, semiconductors, batteries, industrial processing, aerospace, and medical industries.

Amid the trend of electronics moving toward higher density, miniaturization, and high-temperature resistance, polyimide tape (also known as PI tape) has become a core auxiliary material across multiple advanced industries. Made from high-performance polyimide film coated with a special pressure-sensitive silicone adhesive, this functional tape delivers stable performance even under extreme conditions such as 260°C high heat, strong chemical exposure, and precision circuit insulation. It provides reliable protection and electrical insulation for critical applications in semiconductors, new energy technologies, and electronic manufacturing.

Features of Heat Sublimation Tape：

• High Temperature Resistance
• Electrical Insulation Performance
• Chemical and Mechanical Resistance

Applications of Polyimide Tape: 

Electronics Manufacturing & PCB Protection

• SMT & PCB masking: Polyimide tape is ideal for PCB gold fingers, solder pads, and test points during wave soldering and reflow processes up to 260–280 °C. It prevents solder bridging, peels off cleanly without residue, and keeps contacts reliable.

• Electrical insulation: Works as high-temperature insulation tape for EV motors, transformers, relays, and capacitors. Withstands long-term heat exposure up to 200 °C with a dielectric strength of 8–15 kV.

• Flexible circuits & chip protection: Suitable for FPC insulation in foldable phones, tablets, and wearables. Protects sensors, ICs, and precision chips from scratches, dust, and heat during assembly.

Semiconductor & Advanced Packaging

• Wafer protection: Used in wafer-level packaging and bonding processes (200–230 °C), ensuring no damage during plasma cleaning or bonding. Residue-free removal improves production yield.

• Dicing & probe testing: Acts as wafer dicing tape and provides insulation for probe cards, stable across -40 to 125 °C.

New Energy & Energy Storage

• Lithium batteries: A key battery insulation tape for EV and energy storage cells. Provides electrode tab insulation, resists electrolyte corrosion, and maintains stability across -40 to 85 °C.

• Solar & hydrogen systems: Ensures long-term insulation in PV inverters (120–150 °C) and hydrogen fuel cell bipolar plates, resistant to high temperature and chemical attack.

Industrial, Aerospace & Medical Applications

• High-temperature masking: Perfect for powder coating, metal spraying, composite molding, and automotive parts, withstanding 200–300 °C baking. Clean removal without surface damage.

• Aerospace insulation: Trusted for spacecraft electronics, engine sensors, and satellite boards exposed to extreme environments (-240 to 200 °C, UV, and radiation).

• Medical devices: Biocompatible and non-toxic. Suitable for diagnostic equipment and devices requiring 134 °C steam sterilization.

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