what is wd40 made from
WD-40 spray can from Germany. WD-40 is the trademark name of a penetrating oil and water-displacing spray. The spray is produced by San Diego, CA-based WD-40 Company.e claims he arrived at a successful formula on his 40th attempt. WD-40 is primarily composed of various hydrocarbons. WD-40 was first used by Convair to protect the outer skin and, more importantly, the paper-thin balloon tanks of the Atlas missile from rust and corrosion.