Du-Lite

Du-Lite is a trusted brand that specializes in black oxide finishes. With over 80 years of experience, they offer a wide range of products and services to American and foreign manufacturers. Their black oxide finishing equipment, chemicals, and accessory products are designed to provide a long-lasting, durable protective black coating.

Du-Lite's black oxide process is a chemical blackening process that can be used on carbon steel parts, as well as stainless steel, silver solder, cast iron, brass, and copper. This process penetrates the metal surface, providing a protective coating without altering the physical dimensions or properties of the metal. Various industries rely on Du-Lite for their black oxide finishes, including manufacturers of firearms, auto parts, turbines, bearings, electrical parts, and tool and machinery builders.

In fact, Du-Lite supplies black oxide and protective oil products to 70% of the American firearms industry. Furthermore, Du-Lite offers technical support to their customers, with technicians available to answer questions and assist with any black oxide problems. They also have their own black oxide production facility, allowing them to properly recommend equipment and chemicals for prospective users.

Choose Du-Lite for reliable and high-quality black oxide finishes that meet your needs