[Purdy Swoft]

The last time that I looked at the label instructions, Rustoleum recommends lacquer thinner or acetone thinned only 5%. I believe this thinner recommendation is for brush or roll on applications and 5% lacquer or acetone wouldn't have much dulling or fading effect. For spraying I find that a two to one mix or slightly more with enamel reducer or mineral spirits works good. I use a universal super wet look hardener with this system. Urethane activator and reducer can be used with rustoleum for a super hard finish that will look much like single stage urethane.