I am putting together a Tower Hobbies Kaos. I am fuel proofing the engine area. 1st question, is the firewall already fuel proofed? It feels like it is. 2nd, the firewall has 5 openings with blind nuts install, so if I wanted to still go over it to fuel proof it what is the best way to avoid gettin epoxy in the threads? Thanks for the help.

Gene

You could cut little pieces of masking tape and put them over the holes..

Petroleum Jelly also works.

FYI: Epoxy does NOT stick to wax paper...

Keep that in mind.

You could put "Silly Putty " in the holes.