Kapton Covered wire is the condensation product of an aromatic tetra basic acid and an aromatic diamine. It has no melting point, is infusible and self-extinguishing (does not support combustion).Kapton does not melt or burn as it has the highest flammability rating. The outstanding properties of Kapton permit it to be used at both high and low temperature extremes where other organic polymeric materials would not be functional.