GL General-Type Polyimide Yellow Film – Premium Biaxially Stretched PI Film for Flexible Insulation​​

​​Product Highlights​​

Our amber-colored polyimide film offers exceptional thermal and electrical insulation properties, available in standard 25μm and 50μm thicknesses. The biaxial orientation process ensures uniform mechanical strength in both machine and transverse directions.

​​Key Advantages​​

• ​​Superior Thermal Stability​​: Continuous operation at 180°C (Class H rated)

• ​​Excellent Mechanical Properties​​: 3:1 stretch ratio for balanced MD/TD strength

• ​​Natural UV Resistance​​: No added dyes or color migration

• ​​Ready for Processing​​: Corona-treated surface (50-52 dynes/cm) for optimal adhesion

• ​​Reliable Insulation​​: High dielectric strength for thin-layer applications

​​Technical Specifications​​

​​Industry Applications​​

• Flexible printed circuit coverlays

• High-temperature masking tapes

• Motor and transformer insulation

• Flexible heater components

• Printed electronics substrates

​​Quality Assurance​​

• Compliant with IPC-4203/1 standards

• Full resin batch traceability

• Consistent performance without specialty additives

​​Ordering Information​​

• Standard roll sizes: 500mm/1000mm width x 100-300m length

• Core options: 3" or 6" industrial cores

• Minimum order: 200kg (sample rolls available)

​​Special Services​​

• Pre-carbonized film options (600°C pre-baked)

• Custom imidization degrees for controlled carbonization

• Graphitization process guidance available

​​Storage Recommendations​​

• Shelf life: 6 months from manufacture

• Storage conditions: 10-30°C, <60% RH

• Handling: Avoid folding or creasing