Wet lubricant 100ml wd40. our chain lubricant for wet environments wd40 bike is ideal for use in the most extreme climatological conditions. if you like to pass through difficult roads, wet zones and muds, it is the product you need for chaines and transmission. the formula of this lubricant to be used in the wet environments of wd40 bike perfectly lubricates the chain ??and components of the transmission at the same time as it protects it by insulating these elements of water and sludge. can be used on all types of chains, trays, sprockets and other bearings - protects oxidation and dirt and reduces component friction. wd40.