Profile: Black Oxide Industries, Inc. offers metal finishing services. We serve aerospace, automotive, medical, machine tools, gears, computer and furniture industries. Our black oxide coating is a cost effective method of blackening the surface of many different metal substrates. Our black oxide coatings are available for cold roll steel, stainless steel, brass, copper and zinc die cast. We provide powder coating, electroless nickel, zinc plating and passivation services.