KipperK,

From what I've read, Latex once cured is ok for gasoline, but needs to be clear coated for nitro fuel. Some people are using water based poly to clear coat with at least 2 or 3 coats and getting it resistant to nitro fuel. The other options would be to use rattle can clear coat or take it to an auto body shop and have the use PPG clear coat. I plan on trying the water based poly after my parts have cured for at least 7 days. Latex paint takes a bit longer to fully cure out.

Before painting your astro-hog be sure to practice a bit on some test parts. If you don't use the heat gun, you can just take the part out to the water hose and wash the latex off. I did that several times until I got my gun shooting they way I liked. Then I started using the heat gun. But once you start using the heat gun, you will have to scrape the latex off if you want to practice again. I did that too several times. Oh, and I had my piece almost at a 90 degree angle so I could tell if I was going to get any runs.

All in all you just need to spend some time on a test piece and practice. It's really not that hard and just like everything else the more you practice the better you get. Plus after seeing the finish come out good it makes all that sanding pay off.

JR Gautreaux