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GB Standard Polyimide Black Film 25-75μm for Secure FPC Coverlay

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GB Standard Polyimide Black Film 25-75μm for Secure FPC Coverlay

Brand Name : Guofeng

Model Number : PI1

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

Thickness : 25μm / 50μm / 75μm (±5%)

Package : simple/vertical/suspend/horizontal

Tensile Strength : ≥200 MPa

Dielectric Strength : ≥100 kV/mm

Volume Resistivity : ≥1×10¹⁶ Ω·cm

Moisture Absorption : <1.0% (24hrs)

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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

GB Standard Polyimide Black Film 25-75μm for Secure FPC Coverlay

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

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

​​Technical Specifications​​

Property

Specification

Material

Polyimide

Thickness Options

25/50/75/125μm (±3%)

Custom Widths

500-1500mm available

Tensile Strength

≥200MPa (MD/TD)

Dielectric Strength

≥100kV/mm

Surface Treatment

Corona-treated

​​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)


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