Black-Oxide Surface Treatment

Wirtz Wire EDM, LLC utilizes a unique 2-stage process that forms a black magnetite finish on all iron and non-stainless steel parts. The result is a protective black finish- 0.000020″ (1 micron) thick, with an attractive satin black appearance.

Our black oxide finish complies with MIL-C-13924C, Class 1 and is corrosion resistant and will withstand 100-300 hours of salt spray.

Wirtz Wire EDM, LLC utilizes the latest process to be environmentally friendly, although more expensive, our system contains no heavy metals, carcinogens or other EPA regulated materials.