I usually use 30 min epoxy or finish resin thinned with denatured alcohol. The plus side of 30 min is that I can usually get something else done on the plane later in the evening as it cures quicker. Otherwise either works great. I got much better thinning results from denatured alcohol than the drug store stuff. Get some of the cheap steel handle acid brushes to put it on.
It really isn't that big a deal to do.
"Fireproofing" got me to look also.
