GB Standard Polyimide Black Film – Secure Coverlay for Confidential FPC Applications​​

​​Product Advantages​​

Engineered for maximum circuit protection, our opaque black PI film features:

• ​​Complete Light Blocking​​: >99.5% opacity (L* ≤25) prevents visual tracing

• ​​High-Temperature Endurance​​: 260°C glass transition temperature

• ​​Dimensional Stability​​: 15-25 ppm/°C CTE minimizes thermal stress

• ​​Safety Compliant​​: Halogen-free and UL 94 V-0 certified

• ​​Bonding Flexibility​​: Choice of acrylic or epoxy adhesive systems

​​Technical Specifications​​

​​Critical Applications​​

• ​​Defense Systems​​: Secure radar/drone circuitry

• ​​Medical Electronics​​: Implantable device protection

• ​​Premium Consumer Tech​​: Foldable display PCBs

• ​​Automotive Safety​​: ADAS camera modules

• ​​Industrial IoT​​: Tamper-proof sensor packaging

​​Quality Assurance​​

• ​​Anti-Reverse Engineering​​: Defeats optical/IR imaging

• ​​Precision Processing​​: Compatible with laser cutting/die punching

• ​​Custom Options​​: Adjustable opacity (L*15-30) and rigidity

• ​​Full Traceability​​: Complete resin-to-roll documentation

​​Processing Parameters​​

• ​​Lamination​​: 160-180°C @ 1.0-1.5MPa (3-5 minutes)

• ​​Laser Cutting​​: 355nm UV laser recommended

• ​​Chemical Resistance​​: Stable in IPA and weak acids

​​Ordering Information​​

• ​​Standard Formats​​: 500/1000mm × 100-300m rolls

• ​​Core Options​​: 3" or 6" industrial cores

• ​​Minimum Order​​: 200kg (samples available)