The thickness of coating is almost negligible at about 0.00030 mm. Black Oxide coating has an ability to absorb a subsequent coating of oil or other corrosion inhibitor. Of the many options open to any component designer, black coating has served its purpose extremely well over the years and will continue to be important to the metal working industry.

Present-day propriety black oxide baths not only contain an alkaline base with oxidizing agents, but activators to increase the blackening rate at lower temperatures and to produce more uniform results. Black oxide baths now contain additives that increase corrosion and abrasion resistance.

A black oxide finish offers a combination of properties that cannot be provided any other way. This conversion coating does not change the dimensional, physical or mechanical properties of the surface treated. The finish is inexpensive and easy to apply. It has an excellent appearance and is abrasion resistant. Corrosion resistance is satisfactory for a wide variety of applications.

The coating is integral with the steel surface with no dimensional change.  It is ideal for the small or large volume user alike. Parameters are the same for treating one screw or one hundred thousand screws.  Safely and easily produces a rich black oxide coating on all types of Steel and Cast Iron except Stainless Steel.  Hardened and High Carbon Steels can be treated without loss of strength or embrittlement.

Ideal for steel parts upto 1 metre long, charged by the weight.

• Improved corrosion protection
• Improved abrasion resistance
• No dimensional changes
• Improved lubricity
• Anti-Galling
• Reduces light glare and reflection
• Finish does not chip, flake, or peel
• Enhanced appearance
• No welding fumes