Profile: Erie Protective Coatings, Inc. provides finishing services to metal industry. We offer clear & color anodizing, hard anodizing including Teflon® impregnation, chromate conversion, polishing, passivating and electropolishing. Our hardcoat anodizing and Teflon® impregnation per MIL-63576 is the electrochemical process for producing an extremely hard, dense and wear resistant oxide of aluminum, which approaches the hardness of tool steel & corrosion resistance of stainless steel.