3M 5419 Polyimide Film Tape Gold 1 In x 36 Yd

3M 5419 Polyimide Film Tape

This gold polyimide film tape is built for high-temperature insulation and masking tasks in electrical and industrial environments. It suits technicians and engineers who need reliable performance across a wide thermal range. The silicone adhesive bonds securely to clean surfaces while resisting breakdown under sustained heat. Each roll provides 108 feet of continuous, single-sided coverage.

Sustained high-temperature behaviour

The tape maintains its physical and electrical integrity from minus 100 degrees Fahrenheit up to 500 degrees Fahrenheit. It does not carry a voltage rating, so it is intended for insulation and masking rather than as a primary dielectric barrier at rated voltages. Under prolonged thermal cycling the polyimide backing resists embrittlement and the silicone adhesive resists oozing or carbonising. This stability supports consistent results in wave soldering, conformal coating masking and similar processes.

Build quality and daily handling

At 2.7 mils thick the film handles cleanly without excessive stiffness, allowing precise placement on irregular components. The gold colour gives clear visual confirmation of coverage during inspection. A continuous roll format lets users cut exact lengths, reducing waste on small or complex parts. The single-sided construction means adhesive contacts only the target surface, simplifying removal after high-temperature exposure.