Black oxide is a conversion coating for ferrous materials applied most commonly on steel.  When applied, an attractive black finish is obtained.  The high-temperature black oxide process is essentially a chemical conversion of the steel surface and does not change surface dimensions significantly.



  • Zero dimensional impact

  • Anti-galling

  • Apply oil as a supplemental treatment

  • Provides mild corrosion protection

  • Improved lubricity

  • Conductive properties

  • Cost competitive

  • Reduces light reflection

  • Nadcap Certified

  • RoHS compliant

Corporate Office

271 Snelling Avenue North

Saint Paul, MN 55104
Office Hours: Monday - Friday 8:00am - 5:00pm


1605 Iglehart Avenue

Saint Paul, MN 55104

Dock Hours: Monday - Friday 6:00am - 11:00pm

Phone: 651-645-0787

Fax: 651-645-1512


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