Okay here is what I found about the Rustoleum paint I am using. This only applies to the red and white that I planned to use. I had sprayed some of each on some ceramics and let them cure for a full two weeks. Some of the time they were inside next to a heater and a few days outside sitting in the sun. I then subjected them to some 10% fuel. The paint lifted after less than one minute. After a little head scratching (used other colors in the past) I realized that it might be the material I was using for the test. I went and painted a piece of plywood. In just two days it was fuel proof with the 10%. Turns out if you use it on a non-porous surface it may never fully cure. I would not use this on plastic or fiberglass and expect it to be fuel proof unless you can wait a VERY LONG time. Since that time I have used it on various woods and cloth covering (super coverite) with good sucess.