Import Cr Polyimide Film — Buy in Bulk from Supplier in China

The CR Polyimide Film from New Century (Tianjin) Polyimide Films Insulating Materials Co., Ltd. is a corona-resistant electrical insulation material designed for high-performance applications. This film combines the inherent properties of polyimide - such as excellent heat resistance, chemical stability, and electrical insulation - with enhanced corona resistance, making it ideal for use in electromagnetic winding wires, traction motors, wind generators, and special motor turn-to-turn insulation. It is classified under heat resistance Class C, indicating its suitability for continuous operation at temperatures up to 200°C.

The film is available in three variants: CR type (uncoated), FCR type (single-side F46 coating), and FCRF type (double-side F46 coating). Each variant maintains a golden-brown, translucent appearance with a bright, clean surface free from defects such as wrinkles, tears, or foreign particles. The thickness ranges from 25 µm to 50 µm, with allowable deviations of ±2 µm to ±3 µm, depending on the type. The coating thickness for FCR and FCRF types can be customized between 5 µm and 12.5 µm based on customer requirements. Widths are cut to order within 600 - 1050 mm, and standard roll lengths are 500 - 1000 m, with no more than three joints per roll.

This product is primarily used in industries such as electrical engineering, renewable energy, and motor manufacturing, where reliable insulation and thermal management are critical. The film’s corona resistance life exceeds 1000 hours at 1 kV, 20 kHz, and 90°C, with a pulse rise time of 400 ns. Its dielectric strength, surface resistivity, and volume resistivity meet stringent industry standards, ensuring consistent performance in high-voltage and high-frequency applications. Buyers should confirm the exact specifications, such as tensile strength, elongation, and dielectric properties, to match their application requirements.

New Century (Tianjin) Polyimide Films Insulating Materials Co., Ltd. is located at No.11, Tianhua Road, Balitai Industrial Zone, Jinnan District, Tianjin, China. The company specializes in the production of polyimide films, with a focus on corona-resistant variants for electrical insulation applications. Its location in Tianjin, a major industrial hub, provides access to advanced manufacturing facilities and logistics networks for both domestic and international markets.

The supplier is classified as an imported-tier provider with a harbor trust tier. While the profile does not specify response rates, certifications, or production volumes, the company’s emphasis on technical specifications and customization suggests a commitment to meeting precise industry standards. Buyers are encouraged to directly confirm capabilities such as MOQ, lead times, and quality control processes, as these details are not explicitly provided in the available data.