Doing a little test and will post results if anyone is interested. I took 3 globs of Splash-zone epoxy (A-788) and weighed each one after drilling them and placing a piece of tig wire thru them so I could submerse them in alcohol and BP93 to see how they held up. I have them numbered as such.
#1. Alcohol, un-coated, weights 55 grams
#2. Alcohol, brushed on one coat of MinWax polyurethane, 55 grams
#3. BP93 pump gas, one coat MinWax, 45 grams
These where placed in glass olive jars on 5-6-14 at app. 2:30pm and after a few days I will remove and weigh each sample again and inspect to see how they are holding up. Here are a few pictures.
Lets see what happen as alcohol is in lots of gas we now buy.