How to Use Insta-Blak 333
Insta-Blak 333 is a black-oxide process designed to make in-house blackening simpler, faster, and more effective while still achieving an aesthetically pleasing black finish.
Use Insta-Blak 333 to:
- Coat metal items with a glossy, grey-black finish
- Blacken metal parts at room temperature in only 1–5 minutes
- Achieve clean, smut-free finishes and dimensional stability
- Reduce heating and energy costs
- Avoid hazardous caustic fume
- Blacken cold- and hot-rolled steels, cast iron, powdered metals, tool steels, and sterling silver
Getting Started
EPi offers 2-liter trial kits and 5-gallon short-run production kits for short-term projects. Learn more about what is included in the trial kit and the short-run production kit.​

Corrosive

Environment

Irritant

Toxic
How to Use Insta-Blak 333
Insta-Blak 333 is a black-oxide process designed to make in-house blackening simpler, faster, and more effective while still achieving an aesthetically pleasing black finish.
Use Insta-Blak 333 to:
- Coat metal items with a glossy, grey-black finish
- Blacken metal parts at room temperature in only 1–5 minutes
- Achieve clean, smut-free finishes and dimensional stability
- Reduce heating and energy costs
- Avoid hazardous caustic fume
- Blacken cold- and hot-rolled steels, cast iron, powdered metals, tool steels, and sterling silver
Getting Started
EPi offers 2-liter trial kits and 5-gallon short-run production kits for short-term projects. Learn more about what is included in the trial kit and the short-run production kit.​