High Temperature Polyimide Tape – 260°C Heat Resistant, Electrical
Insulation & PCB Masking For Soldering PI tape (Polyimide tape) is made of a high-temperature resistant
polyimide film backing coated with high-performance silicone
adhesive. It offers excellent electrical insulation and heat
resistance. Widely used in electronics manufacturing,
high-temperature masking, and lithium-ion battery tab fixing, it is
a critical auxiliary material in precision industrial processes.
Its operating temperature typically ranges from -70°C to 260°C,
with the ability to withstand even higher temperatures for short
periods. Technical Specifications | Material | Polyimide Film | | Adhesive Type | Pressure Sensitive Silicone Adhesive | | Thickness | 30um~100um |
Key Advantages - Extreme High-Temperature Resistance: Withstands long-term exposure to 260°C and short-term spikes above
300°C without melting, deforming, or leaving residue—ideal for
reflow and wave soldering processes.
- Strong Insulation & Chemical Resistance: Features a breakdown voltage of over 5kV and resists acids,
alkalis, radiation, and solvents, effectively protecting sensitive
electronic components.
- Conformable & Residue-Free Removal: The adhesive offers balanced tack, leaving no residue or
contamination after peeling. The flexible backing conforms easily
to curved or irregular surfaces.
Primary Applications - High-Temperature PCB Protection: Masks gold fingers, connectors, and slots on circuit boards during
reflow or wave soldering to prevent solder contamination or
high-temperature oxidation.
- Lithium Battery Tab Fixing: Secures and insulates tabs during cell manufacturing, resisting
electrolyte exposure and subsequent high-temperature formation
processes.
- High-Temperature Spray Masking: Provides local protection for electronic components, motor coils,
or automotive parts during high-temperature sandblasting, painting,
or powder coating.
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