Repainting a 1989 Jimmy. 2 part paint. Got the basecoat down, then tried to add pinstripe. The pinstripe looks horrible. Tried a little bit of thinner to take off the pinstripe and it takes up the basecoat too. What can I do? Supposed to put on the clearcoat within 24 hours of the basecoat and the clock is ticking or do I have to wait until the stripe is hard enough to sand and then sand the rest of it too for the clearcoat.
Aaack. Things were going so well. Oh and the pinstripe is black so it wont cover up either (tried that on small part).