EPi is excited to announce we now offer three blackening processes for steel/iron WATCH VIDEO.
Ultra Blak 400 the hot black oxide process runs at 285F. A premium grade, the hot black oxide process produces a Fe3O4 black oxide finish.
Kool Blak 225 is a mid-temperature process that runs at 225F producing a Fe3O4 magnetite black oxide finish.
Insta Blak 333 runs at room temperature and is a blackening technique, resulting in a copper-selenide black finish.
EPi can meet all of your needs for blackening needs!