Silcosteel, Sulfinert, and Siltek treated materials have improved corrosion resistance, but Silcosteel-CR surface treatment is optimized to enhance resistance to hydrochloric, nitric, and sulfuric acids. It provides a 10-fold improvement in corrosion resistance, compared to untreated stainless steel, and a 4-fold improvement compared to Silcosteel-coated stainless steel.

