Originally titled 'Mid-Temp Black Oxide Enables In-House Blackening'
EPi’s Kool-Black is a mid-temperature black oxide process designed for OEM manufacturers who want to blacken parts in-house. It operates at a temperature of 225°F, which means no boiling is involved and no caustic fumes are produced. The process is said to be safer for the operator and smut-free. The finish protects against corrosion and meets MIL-DTS 13924D.