Petroleum Service Company provides Government and Military Approved, Qualified Products Listed (QPL) rust preventative coatings and lubricants to defense industry original equipment manufacturers (OEM's) and subcontractors. Petroleum Service Company markets Tectyl and Nox-Rust Mil-Spec, QPL corrosion preventative or corrosion inhibitor products. PSC offers Mil-Spec Coatings and Mil-Spec Oils & Greases in 55 gallon drums. Petroleum Service Company repackages Mil-Spec coatings and oils into pints, quarts, gallons, pails and kegs. A Certificate of Analysis (COA) will be provided with every Mil-Spec Order.