Black Oxide for Steel

Mid-Temperature Blackening Finishes for Steel Parts

Mid-Temperature

Utilizing a unique two-stage oxidation (Patented), the Tru Temp® Mid-Temperature Black Oxide forms a black magnetite finish on all iron and non-stainless steel parts. The Tru Temp process operates effectively at much lower temperatures than hot black oxide – 100 degrees lower, in fact! The result is a protective black finish - 0.000020" (1 micron) thick, with an attractive satin black appearance equal to that of hot black oxide.

Introducing the new patent pending TRU TEMP® 2ND GEN mid-temperature black oxide. An industry first mid-temperature black oxide with capabilities to finish a wide range of ferrous metals including iron, steel and tool steel, all with one black oxide formulation. LEARN MORE

Tips and Resources

Finished Examples Gallery

Black Oxide Temp Guide

How To Black Oxide

eBook How To Black Oxide In-House

FREE Sample Part Testing Submission

Finishing Equipment

Tru Temp® 2nd Gen Black Oxide

Concentrate for make-up and replenishment.

TRU TEMP® 2nd Gen Mid Temperature Black Oxide Process operates at 200 – 210° F and forms a durable black oxide finish. True magnetite finish, AMS and MIL spec certifiable.