Hot Temperature, 140–200° F
Hot-temperature black-oxide processes produce glossy black-blue coatings and true black-oxide magnetite finishes in 10–20 minutes. EPi’s line of high-temperature blackeners offers impressive abrasion and corrosion resistance, and several products meet military and AMS specifications.
Hot black-oxide solution formulated for a variety of copper, brass, and bronze surfaces. Ideal for hardware and construction surfaces.
- Small items such as ammunition or hardware/fasteners
- Plumbing, pipes, and fittings
- Achieving a hard copper oxide finish, US 10 B