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

Brand Name:	Guofeng
Model Number:	PI1
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

Detail Information

Product Description

Detail Information

Place of Origin:

HEFEI, CHINA

Certification:

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

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)

Packaging Details:

Pallet

Supply Ability:

180000 TON/YEAR

Highlight:

GB Standard polyimide film

black FPC coverlay film

25-75μm polyimide film

Product Description

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 0

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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products details

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

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

GB Standard polyimide film

black FPC coverlay film

25-75μm polyimide film