This document has been declared "Stabilized" and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability or technical requirements. New technology may exist.This specification covers a 100% homopolymer of polychlorotrifluoroethylene (PCTFE) in the form of film and film tape 0.010 in. (0.25 mm) and under in nominal thickness. Primarily for parts requiring chemical inertness up to 200 degrees C (392 degrees F) and electrical insulating properties up to 165 degrees C (329 degrees F).