Burnishing agent for steel alloys

Metal finishing company Emil Otto has developed a range of materials for the cold burnishing and blackening of special steel, alloys and high-alloy stainless steels.

Previous products are suitable for aluminium and aluminium alloys, iron and steel, copper, brass, bronze as well as titanium and titanium alloys.

According to the company, metal alloy parts can be soaked in the Nigrit VA-Extra burnishing solution to produce black mixed oxide layers. The layers created by burnishing are resistant to bending and abrasion, which makes subsequent processing of the metal possible.