The Honey colored glue is probably Epoxy if it's around the Fire Wall. That's what I use to fuel proof that whole area with. Usually Z-Poxy. Just a light coat to cover the whole engine compartment. I try not to use any Epoxy around the tail area. It can add weight faster than you might think. This is just My opinion and I'm sure there are many other points of view. All I can say is "it works for Me".[8D]