I'm finishing my first body using Stew mac Colortone nitrocellolose lacquer. I put on Stew mac nitro sanding sealer with few problems. A couple runs, but it was obvious I was being heavy handed. Now I'm trying a color coat, tinted with Colortone stain, un-thinned. I started with a very light coat, no problem. The later coats run along the edge, specifically near the horns. I'm spraying with Preval, and hanging to dry after I spray. The last coat seemed to dissolve the earlier coats and ran. After the last attempt, I just wipedit, and all the color came right off. I knew the latter coats could dissolve previous coats somewhat, but enough to cause a run?
Help!