Closely Guarded Trade Secrets
WD-40's Secret Formula
The formula for WD-40 is locked in a bank vault and has only ever been taken out of the vault twice -- once when they changed banks and once on the CEOs 50th birthday. The CEO rode into Times Square on the back of a horse in a suit of armor with the formula. The company mixes WD-40 in a concentrated form in three locations -- San Diego, Sydney and London -- and then sends it to aerosol manufacturing partners.