What do you use to fuel proof with? I'm still cutting wood back to plywood so I have something to build off of. It will be a few days before I get through cutting. I'm cutting out busted balsa back to ply frame, then build off that to patch the holes. The firewall on this one is ok. The other New ARF Trainer will be electric so no fuel.

And whats this glue every where that looks like Dark Honey? The previous owner used it to do what looked like field repair, it sure is mean to get off. lol