Engineered for demanding automotive environments, our etched-foil polyimide (PI) heating film combines ultra‑thin flexibility, rapid thermal response, and long‑term reliability—precision‑etched alloy foil hermetically sealed between tough yellow or amber polyimide layers to meet the most stringent material specifications. With exceptional bendability and thermal stability, this lightweight heater perfectly conforms to contoured seat cushions and full‑seat heating systems for passenger cars, electric vehicles, and new energy vehicles, while its low‑profile design easily navigates cramped interior spaces for seamless integration into both OEM assembly lines and aftermarket retrofits. Rapid heat‑up, consistent warmth distribution, and corrosion‑resistant construction ensure extended service life under repeated flexing, vibration, and temperature cycling, delivering steady comfort and enduring performance in the most rigorous automotive duty cycles.

• Fast lamination compatibility – designed for quick and efficient lamination cycles, boosting production throughput.

• Excellent dimensional stability – maintains precise alignment and flatness throughout the lamination process.

• Superior electrical, chemical & thermal properties – ensures reliable insulation, corrosion resistance, and heat tolerance in demanding environments.

• Optimized glue flow control – promotes uniform adhesive distribution, reducing voids and improving bond strength, which is especially critical for high-quality FPC lamination.

Our heating film offers two PI color choices (Yellow and Amber Kapton®-type), precision-etched foil for uniform heating, and an ultra-thin profile (0.13–0.22 mm) that feels completely unobtrusive. Its flexibility allows seamless adaptation to curved seat surfaces while withstanding millions of flex cycles. With strong dielectric insulation, moisture resistance, rapid heat-up, and a wide thermal range, this heater is built for year-round automotive use. Plus, we support full customization of size, circuitry, resistance, voltage, leads, and terminals.

Shenzhen Tunsing Plastic Products Co., Ltd., established in 2007 and headquartered in Shenzhen, China, occupies a 10,000 m² manufacturing facility. We specialize in the development and production of high-performance polyimide (PI) films, etched foil heating elements, and flexible circuit materials. With years of technical expertise, we serve the automotive, electronics, and FPC industries, offering customized solutions that combine quality, reliability, and cost-effectiveness.