Hi Sledge, I will know the answers to you question in about a week. I am just finishing an Aeromaster Bipe that I painted with rust-Oleum. I painted it Sail Blue, Sunrise Red, and Gloss White. I also sprayed clear over the decals, but not the rest of the paint. I have tested raw glow fuel (5% nitro) on all the colors and the gloss clear. It does not seem to affect them after allowing them to cure for 4 or 5 weeks. I did not test them after a couple of weeks as I wanted to make sure the paint had lots of time to cure. Some folks here say 2 weeks is long enough. I also did one 1 minute test with the exhaust from my son's engine using 10% nitro fuel. It did not seem to do anything to the paint, but it was only one short test.
As I said earlier I sprayed the decals with gloss clear. I am not happy with this because the clear seems to not stick well to the rust-oleum colors. I can scrap it off as if it is not stuck to the paint. It wanted to lift when I removed the masking tape leaveing a built up line. I think I sprayed the clear on to thick which may be causing the problem. We will soon see if the exhaust fuel affects the gloss clear.
I also discovered that acetone can be used to clean off CA glue smears if the rust-oleum has cured for 4 or 5 weeks. I believe it would affect the rust-oleum if you continued to rub long enough or to hard.
I will be posting pictures on my Aeromaster as so as it is completely finished. I will also give a report on the rust-oleum paint after a few flights.

Hope this helps and also hope you are not in a big hurry,
Ralph White, Neoga, IL