Zinc carboxylates serve as auxiliary drier, which produces a hard thoroughly dried film by keeping the film “open”. This property of zinc ends up harder films and prevents surface wrinkling. Though they are not promote drying at low temperatures, It is a good wetting agent and improves gloss. Besides being used as drier, it is used as fungicide in some cases. Effective usage levels are between 0.03% and 0.2% metal based on vehicle solids.