The type of paint is important. If you used rattlecan enamel or straight enamel in a spray gun forget it. Acrylic enamel can be wet sanded and buffed. If you don't know what kind of paint it was it's probably enamel, you would have had to add catalyst (hardener) to arcyllic enamel. If it's just one or 2 panels just tape off the good panels and redo the ones fugged up. If it's the whole car you probably just got a real good life lesson, don't do something you know nothing about. Rattle can enamel can be wet sanded, dry sanding fresh paint will just cause the paint to ball up and clog the sandpaper, wet sanding washes the paint away. Try using 400 wet and work in long strokes using a sanding block, dont use your bare hand, you're fingers will actually be pressure points leaving "valleys" that will be visually discernable in the new paint. Watch "high spots", the sharp edges of the panels where you can esily sand through to metal, you need to reprime if you do hit metal. When you do your first coat (tack coat) spray real light and even and let it sit for about 10 minutes so it just starts to get dry or tacky. Your next coat should be light but more coverage. I like to start with the roof and work down, my preference. On a small car like a Tercel make each spray pass in one shot, the entire length of the car, from bumper to bumper. You only need to actually walk from about tire to tire, should be about 3 steps, stretch out your gun arm in a smooth motion from that point past to the bumper, that helps keep the gun in a level and smooth motion.Really watch the spray pattern, the "wet spot" right where the paints hits the car surface, that's your focus, your Zen, become one with the gun, grasshopper! Don't do one panel at a time, you'll have over-coverage at each panel edge and cause runs. Sorry for going on so long, paint fumes will get to you after time. LOL! Oh yeah! ALWAYS use a good respirator! Dude those paint fumes are dangerous, just look at those wacked out huffers on COPS. Clear coats are especially dangerous! Beside lung and nerve damage clears can be absorbed THROUGH your skin! Always cover up as much as possible, long pants and shirt and a cap if possible.
If you want to check out a site with some tips on paint, but really more about airbrush check out these dudes, some sick off the hook cats here.
http://airbrush.com/forums/
Good luck.
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