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

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)

Anhui Guofeng New Materials Co., Ltd. was initiated exclusively by Anhui Guofeng Group Co., Ltd., and set up by issuing capital on September 23rd, 1998, and on November 19th of the same year, the stock was listed in Shenzhen Stock Exchange (stock code: 000859). 

The company has employs approximately 1,700 people.

Consists of following companies - Anhui Guofeng New Materials Technology Co., Ltd, Guofeng Wood&Plastic Technology Materials Co., Ltd., Hefei Guofeng advanced basic material Technology Co., Ltd, Wuhu Guofeng Plastic Technology Co.,Ltd, Guofeng Composite Materials Co., Ltd.

Guofeng is mainly engaged in plastic film production with 4 BOPP lines, 3 BOPET lines, 4 Thermal film lines and 12 PI film lines with annual output of 180,000 tons. Main products-plastic film is widely used in packaging and electronic information material field, which is sold to regions including America, Europe, Southeast Asia, Japan and Korea.,etc.

Guofeng is one of the 15 enterprises that supported by the government of Anhui Province, one of the National New High-tech Enterprises, National AAA Grade Quality & Prestige Enterprise, China Enterprise Management Scientific Experiments Base, State Class Good Reputation Enterprise, and Excellent Export Enterprise. “Guofeng” brand is regarded as Chinese well-known trademark, and products of film obtains the title of inspection-free product and China famous brand. We had obtained ISO9001 Quality Management System Certificate, ISO14001 Environment Management System Certificate, OHSAS18001 Occupational Health and Safety Management System Certificate, QS Quality Safety Certificate, ISO/TS16949 Quality Management System Certificate and England EKAS Certificate.

Guofeng always keeps the developing strategy of focus on Plastic as the Flagship, implement the construction of leading products’ key projects, grasp the historic opportunity, work hard, innovation, strive for the development of China national industry.