Heatbath » Black Oxide Finishing


Product Name Powder / Liquid For Use On Description
Pentrate® Ultra Powder Steel Black oxide used for the deepest black finish on steel. Produces a uniform black oxide finish with no rub off or dimensional change. Low drag out reduces operating costs. Contains rectifiers to remove non-ferrous contamination. This premium black oxide product has incorporated inhibitors for the control of colloidal iron build up in the operating bath. Pentrate Ultra meets or exceeds all government specifications, including MIL-DTL-13924D for Class 1 black oxide coatings.
Pentrate® Ultra Liquid Liquid Steel Liquid version of Pentrate Ultra.
Pentrate® LTC Powder Cast, Malleable Iron and High Silicon Steel A black oxide for cast, maleable iron and high silicon steel. No Red Finish!  Operates at 250-260°F.
PX®-5 Powder Stainless Steel, Cast and Malleable Iron A black oxide with a unique balance of alkali and oxidizers that operates at 250-260°F. Meets the requirements of MIL-DTL-13924D for Class 4 black oxide coatings.
PX®-5-L Liquid Stainless Steel, Cast and Malleable Iron Liquid version of PX-5.
Kwik-Blak® LT Liquid Steel, Cast or Malleable Iron (Not for use on Stainless Steel) A room temperature black oxide process that saves energy and time. Produces a deep black finish when used at 10-15% by volume. Bath can be filtered for extended service life.
Pentrate® Touch Up Liquid Steel Used to repair scratches or imperfections on previously blackened steel parts.

For pre-treatment products for use prior to Black Oxide finishing, explore Heatbath’s Metal Cleaners.

For post-treatment products to add corrosion resistance to your blackened parts, explore Heatbath’s complete line of Rust Preventatives.

For more technical information on Heatbath’s Black Oxide for Ferrous Metals Contact Us.