EPi manufactures and sells blackening chemistry, which guarantees a variety of black finishes. EPI’s Ultra Blak 400 is the premium-grade hot black oxide. It costs less to apply and produces a magnetite Fe3O4 smut-free finish. Kool Blak 225 is a mid-temp blackening process. It blackens steel at...
(more)EPi manufactures and sells blackening chemistry, which guarantees a variety of black finishes. EPI’s Ultra Blak 400 is the premium-grade hot black oxide. It costs less to apply and produces a magnetite Fe3O4 smut-free finish. Kool Blak 225 is a mid-temp blackening process. It blackens steel at 225–245 °F without the boiling, caustic fumes of traditional hot black oxide, and produces a magnetite Fe3O4 smut-free finish. E-Kleen cleaners and E-Tec rust preventives complete the finish. EPi offers copper plating processes for munitions and alkaline non-cyanide copper for lead substrates.
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