WD-40 All-Purpose Lubricant - WD-40 44037, A 450ml Smart Straw aerosol can of WD-40 - the industry standard lubricant and solvent mix, which penetrates, disperses water and lubricates. It is ideal for cleaning machine parts prior to dismantling or repair, freeing and lubricating at the same time. Because of its electrically insulating properties, WD-40 is ideal for automotive electrics, where it readily displaces moisture and helps prevent tracking. WD-40® 44037 Multi-Use Maintenance Lubricant Smart Straw 450ml