Since 1939, Du-Lite has been a leading manufacturer and supplier of Black Oxide, manganese/zinc phosphate, Oils & Lubricants and Custom Metal Finishing Equipment for the firearm industry. Du-Lite's Kwikseal Firearm lubricant protects finished parts from rust and corrosion with protection lasting up to 12 months. We maintain a complete laboratory to assist in solving our customers most difficult finishing challenges. As your main supplier or as a 2nd source of finishing chemicals, you can count on our quality and availability. www.Du-Lite.com 860-347-2505 (less)