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WD-40 cans


[WD-40 Company] A registered trademark for a light machine oil. WD-40® was developed in 1953 by Norm Larsen and the name is an abbreviation for 'water displacement, 40th attempt'. It contains a mixture of 50% volatile petroleum distillates in a petroleum base oil. WD-40® is used to lubricate metal surfaces especially for delicate machinery. Other applications include cleaning lightly rusted parts and removing adhesive residues.


WD-40 aerosol: SDS

Physical and Chemical Properties

Density 0.817 g/ml
Boiling Point 323 F

Resources and Citations

  • Conservation News Number 33, July 87
  • Website: www.hants.org.uk/museums/ofr/cmeth_t.html