MICA STRIP HEATERS are the most versatile of all types of heaters for industrial and commercial applications. They are used in a wide variety of environments, Flexible leads– incorporated in small heaters (less than 1 14” wide or heaters with less than 5 square inches of heater surface) to allow for maximum heating surface, Nickel-chromium resistance ribbon– precision wound on custom machines to ensure proper resistance rating, Rust-resistant sheath– zinc-impregnated steel for excellent heat transfer (18 gauge steel pressure plate, 24-gauge shell).