EPI Black Oxide

Black Oxide for Manufacturers, Distributors & Job Shops:

What is Black Oxide?

Learn about hot black oxide and room temperature metal blackening processes & applications in our Black Oxide FAQs. Check out our Black Oxide Library which includes educational audio & video clips, papers and links to other site resources.

Why Choose EPI?

Founded in 1954, EPI is proud to have developed award-winning high quality black oxide processes which are different from other manufacturers, including Insta Blak 333, which offers a wider operating window without smutty rub-off problems. UltraBlak 400 blackens a wider variety of steels, blackens faster than its competition, and generates less sludge, which saves on energy costs. Read our client case studies. EPI is ISO 9001 Certified.

How to Buy Black Oxide Coatings?

EPI makes it easy to purchase black oxide coatings, cleaners, and metal finishing products. Buy online, request an Insta Blak sample kit for just $37.50, request a quote, send us a minimum of six sample parts for blackening {sample form – PDF}, or talk to us today by online chat. You can also request a call-back or just email us. We ship to most countries, however freight and delivery costs and times may vary. We also offer turnkey equipment for select manufacturers and job shops. We look forward to serving your manufacturing, distributor and job shop blackening needs.