TCP-HF was developed and patented by the Department of Defense, US Navy. It is a trivalent chromate based coating aimed at replacing Hexavalent Chromates, and outperforms all other trivalent products tested.

TCP-HF provides a safe and compliant finish for most applications in today’s Green Environment. It is an alternative to Alodine® and Iridite® (Hexavalent Chromate Conversion Coatings – or Gold Chemfilm).

• This process complies with MIL-C-5541F.
• Class I A chemical conversion coatings are intended to provide corrosion prevention when left unpainted and to improve adhesion of paint finish systems to aluminum and aluminum alloys.
• Class 3 chemical coatings are intended as a corrosion preventive film for electrical and electronic applications where low resistance contacts are required.