Polyimide
A polymer that can be produced as a film that is used in tape form for high temperature applications where light weight is important. This film has good physical properties over a wide temperature range. It exhibits excellent cut-through resistance at temperatures in excess of 250° (482°F). It maintains its electrical properties at elevated temperatures. It has excellent solvent resistance. However, it is degraded by concentrated acids and alkalis and long-term exposure to steam. Used for magnet wire construction.