RE: Solartex How to seal?
I agree with Dzlstunter about using Nelsons water based paint. With crosslinker added it is totally fuel proof. It sprays a little different. Just practice spraying water on a painted metal panel (like your car!!) and pretty soon you will get the hang of "misting" on a coat. I use it mostly to seal Solartex, so I mostly spray clear satin. Gives a great old time look and seals great against dirt/oil. One bottle lasts for several planes, and so does the "crosslinker" additive. Doesn't add much weight, none that I can tell. I hasn't ever turned yellow, I don't get runs and it is very tough. No ordor, the overspray falls as a sort of dust (it drys before it hits the ground). You end up spraying 4 or 5 coats but they dry real fast, like 8-10 minutes. So it doesn't take long to spray a plane. The hardest thing is seeing when you have sprayed enough on, it takes so little. I use a light shining across the part (wing/fuse) that I'm painting. Cleanup is with water. Let it cure out for a couple days before you fly, just for safety sake, but I don't know why you couldn't take it flying right after it drys.
I run 20% nitro through my Saito engines and have let them set 2 weeks before cleaning them off, no problems.
I don't work for Nelson's, I just like their product. They also sell Worldtex, which is the same as Solartex.
hope this helps,
Smackdown