If your talking about 2 stage paint ( base coat clear coat)It's a chemical that's added to the paint so when you do a repair it will match the factory paint orange peel. You can wet sand it and polish it and make it smooth as glass. The only way to get around it is a real slow hardener and hose the clear on pretty heavy on each coat. Allow plenty of time between coats so you don't get too many runs but hosing it on you will most likely get some.