you have to use a laquer clearcoat over laquer,if you use one of the enamel types it will never dry.I had a so-called expert work for me one time who laquered a saab then cleared it with urethane clear, three weeks later it was still like a wet candy apple,couldn't even touch it.I fired the expert for a few other expert jobs,then had to find him to see what he had done to the saab.The clear would dry nicely in the hot sun but by morning it was wet again,I had to do it over myself,now I don't paint saabs anymore