Lead driers are yellow-coloured highly viscous solution of lead metallic soap in minreal spirits. Lead is regarded as “through drier” as it functions through the whole thickness of the coated film. It increases the resilience, toughness and overall endurance of the film. It is also known to provide water and salt resistivity. Lead driers are accompanied by cobalt or manganese and most of the time calcium in order to prevent precipitation, which ultimately causes haziness and therefore the drop in gloss. The usage levels are from 0.08 % to 0.6 % metal based on vehicle solid.