ITW Formex insulation sheet has become an ideal choice in the field of electrical insulation due to its outstanding performance parameters. Below are its core features and technical specifications: 

1.Flame Retardancy: All product series comply with UL 94 V-0/VTM-0, the highest flame retardancy rating, effectively inhibiting flame spread and reducing fire risk.

2.Excellent Electrical Insulation: Features extremely high dielectric strength. For example, GK-17 achieves a withstand voltage of 24,820 volts, and the ultra-thin GK-5BK (0.127mm) still offers a breakdown voltage of up to 11,000V.

3.Extremely Low Moisture Absorption: Moisture absorption rate is only 0.06%, ensuring long-term reliability in humid environments.

4.Outstanding Temperature Resistance: The Relative Thermal Index (RTI) for polypropylene film can reach up to 125°C, and up to 130°C for polycarbonate film. The GK series offers long-term temperature resistance of 115°C, while the GL series is enhanced to 125°C.

5.Superior Mechanical Properties: The material combines stiffness with flexibility, featuring excellent scoring and folding characteristics, making it suitable for high-quality insulation folding parts. It can be printed or laminated with copper/aluminum foil for shielding insulation.

6.Environmental Compliance: Meets RoHS, WEEE and REACH environmental requirements. UL Recognition File E121855.

7.Thickness Specifications: The GK series covers a thickness range from 0.127mm to 3.18mm, available in various specifications including GK-5BK (0.127mm), GK-10 (0.25mm), GK-17 (0.43mm), GK-30 (0.76mm), GK-40 (1.02mm), GK-62 (1.57mm), among others.