CBO Home Black Oxidizing     The Process     Industries Served     Rust Inhibiting Job Shop Services     Vibratory/Barrel Finishing     Blasting     Parts Washing Supplies & Equip.     VBS Compounds     Medias     Equipment Expansion Contact Us The Process: Black Oxide is a chemical blackening process for steel parts. The Black Oxide process causes virtually no dimensional change to the part, which does occur with painting or zinc plating; making black oxide appealing in instances where a coating is required with no “build-up” of material. Black oxide penetrates the steel 5-10 thousandths and adds to the part thickness by only 5-10 thousandths providing a hardness of 5 on the Mohes scale. Cincinnati Black Oxide utilizes a hot black solution, with our tank operational at approximately 285ºF. Our Black Oxide is heated via a 1.2 million BTU burner system and is temperature controlled automatically. Utilization of our own chemistry in the tank gives us total control over the quality of our plating. Our VBS Black Tank chemical process produces a fine grained uniform surface. Contamination of our black tank is controlled by skimming of suspended oxides regularly. This contributes to our consistent high quality finish. Cincinnati Black Oxide’s process and the black oxide formed by our salts meets or exceeds Military, Aeronautical, and Automotive Specifications including but not limited to: Mil-C-13024 Class I/Mil-DTL-13924 AMS 2485H Proctor & Gamble Spec GCS 14 Chrysler Corp PS-1129 Ford ESF-M6P3-A General Motors GM-4347-M Toyota TSH76036 General Electric Aircraft Engine 70-43-12 Certifications are available upon purchase order request. Pickle & Oil: Our pickle and oil process is utilized by customers for pre-plate, pre-powder coat finishes. This process removes heat treat scale, rust and welding flash and/or burn. Our maximum turn around time of 24 hours allows us to assist our customers in meeting or exceeding their production schedules. Same day service is available upon request at no additional charge.