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25μm Polyimide Film for Flexible Insulation - Biaxially Stretched

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Anhui Guofeng New Materials Co., Ltd.

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25μm Polyimide Film for Flexible Insulation - Biaxially Stretched

Name: 25μm Polyimide Film for Flexible Insulation Biaxially Stretched
Brand: Guofeng
Price: 1.0 USD

Buy cheap 25μm Polyimide Film for Flexible Insulation - Biaxially Stretched product

Brand Name : Guofeng

Model Number : PI2

Certification : ISO9001, ISO14001, ISO45001, QS production license and ISO/TS16949 UK DAKKS

Place of Origin : HEFEI, CHINA

MOQ : 1 ton

Price : 1.0-2.0 USD/KG

Payment Terms : T/T,L/C,D/P,D/A,Western Union,MoneyGram

Supply Ability : 180000 TON/YEAR

Delivery Time : 1-3 weeks

Packaging Details : Pallet

Material : polyimide

Thickness : 25μm

Width : Customized

Length : Customized

Package : simple/vertical/suspend/horizontal

Tensile Strength : ≥200 MPa

Dielectric Strength : ≥150 kV/mm

Volume Resistivity : ≥1×10¹⁶ Ω·cm

Moisture Absorption : <1.0% (24hrs)

Dimensional Stability : ≤0.1% shrinkage @ 200°C

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GL General-Type Polyimide Yellow Film – Biaxially Stretched Standard PI Film For Flexible Insulation

Product Overview

Our GL General-Type Polyimide Yellow Film is a biaxially stretched, naturally amber-colored polyimide film designed for high-temperature insulation, adhesive tapes, and flexible circuit coverlays. Available in two optimized thicknesses (25μm & 50μm), it balances mechanical strength, thermal stability, and electrical properties—making it a versatile choice for electronics, aerospace, and industrial applications.

Key Features

✔ Biaxial Orientation – Uniform MD/TD strength (3:1 stretch ratio)
✔ Thermal Class H (180°C continuous)– Withstands soldering and reflow
✔ Natural Yellow Hue (No dyes) – UV-resistant, no color migration
✔ High Dielectric Strength– Reliable insulation for thin layers
✔ Adhesion-Ready Surface – Corona-treated (50-52 dynes/cm)

Applications

FPC Coverlays – Flexible circuit insulation
High-Temp Tapes – Masking, splicing, and EMI shielding
Motor/Transformer Insulation – Anode current collectors
Heater Elements – Backing for flexible heaters
Printed Electronics – Substrate for conductive inks

Technical Specifications

Property	Value
Material	Polyimide
Application	FPC Coverlays
Thickness Range	25μm
Width	Customizable (e.g., 500mm - 1500mm)
Elongation at Break	MD 70-90% TD 60-80%
Tensile Strength (MD)	≥250
Tensile Strength (TD)	≥80
Dielectric Strength	≥ 150kV/mm

Why Choose Our Film?

Proven Reliability – IPC-4203/1 compliant for rigid-flex PCBs
Process Flexibility – Compatible with laser cutting, die punching, and adhesive lamination
Cost-Effective – Standard-grade performance without specialty additives
Traceable Supply – Full resin batch documentation

Product pictures

25μm Polyimide Film for Flexible Insulation - Biaxially Stretched

Handling & Storage Instructions

To ensure the longevity and performance of our BOPP film, please adhere to the following guidelines:

Shelf Life: 6 months from the date of manufacture.
Storage Conditions:Store in a cool, dry place away from direct sunlight and moisture.
Temperature Range: 10°C - 30°C.
Humidity: Keep below 60% relative humidity.
Handling: Avoid folding or creasing the film to prevent damage.

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Standard Formats:

Roll Dimensions: 500mm/1,000mm width x 100-300m length
Core ID: 3" / 6" (industrial cores)

Special Services:
Pre-carbonized films (pre-baked at 600°C)
Custom imidization degrees (for controlled carbonization speed

MOQ: 200kg (sample rolls available)

Request our Graphitization Process Guide with temperature profiles for different end uses!

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