The “E.P.” Process
Chromium, which is a component of stainless steel, is electrochemically enhanced on the product surface. The chromium-to-iron ratio on the surface of the stainless steel is transformed through iron removal from a 1:6 to a 4:1 ratio. The chromium oxide layer that is formed is a homogeneous constituent of the metal. It cannot delaminate or peel and is extremely corrosion resistant.
A stainless steel piece is placed on a copper rack and immersed into an electrolytic acid bath. This proprietary GEMLUX® bath consists primarily of phosphoric and sulfuric acid. The bath temperature may range from 120° - 180° F. Electricity is run through the rack (the anode) and the work part pieces. At this point, the negatively charged cathodes draw the iron off the surface of the stainless steel.