Room Temperature, 65–85° F
Room-temperature black oxide processes are best for quick, safe, and convenient in-house and even at-home blackening. Use a room-temperature blackening process to give steel parts satiny, grey-black finishes and extra corrosion resistance.
Immersion blackening solution that results in a smooth, no-smut black finish.
- Tools/fasteners, firearms, architectural surfaces, and furniture
- Steel sheets and architectural surfaces
- Creating smooth finishes and dimensional stability
Hot Temperature, 250–260° 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.
Oxidizing salts used to blacken cast iron, malleable iron, and some mild low-carbon steels with a deep, rich black finish. Also available in liquid form.
- Steel and iron castings and most steel items
- Achieving deep black finishes on all castings
- Blackening parts at hot/boiling temperatures