Signature series speed primer is a premium, 2K urethane primer surfacer that covers in as little as two coats and air dries in 30 min under ideal conditions. This easy-to-sand primer surfacer can be applied directly to metal, provides excellent gloss holdout and is highly resistant to film shrinkage. Save 30 to 40% on your entire labor process time when used in conjunction with Transtar's No Mix low VOC basecoat and signature series speed clearcoat.