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
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.
Order Now!
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!
