3M 5419 Polyimide Film Tape Gold 1/2 in x 36 yd

High-temperature polyimide tape for insulation

3M 5419 is a gold-coloured polyimide film tape with a silicone adhesive designed for electrical insulation. It suits technicians and engineers who need reliable performance in extreme thermal environments. The tape operates continuously from minus 100 degrees F up to 500 degrees F. It is sold as a new, continuous roll measuring one-half inch wide by 36 yards long.

Single-sided construction limits mechanical

The tape is single-sided, so adhesive sits on only one face of the 2.7 mil film. This means it insulates and masks surfaces but does not bond two substrates together. With no voltage rating assigned, it cannot be relied upon as a primary dielectric barrier at specified potentials. Users must verify suitability against their own electrical safety requirements before applying it to live circuits.

Silicone adhesive leaves minimal residue on removal

The silicone adhesive system resists degradation at high temperature and typically releases cleanly after thermal cycling. Gold colour provides clear visual identification during inspection or rework. At 108 feet per roll, the length supports multiple small jobs or extended masking runs without frequent roll changes. The thin 2.7 mil profile conforms to irregular shapes without adding bulk.