well i havent used epoxy like i said in 20 yrs but I am going by several compatability charts not personal experience other than seeing a lot of epoxied firewalls fail. now since i didnt build them there may be something else at work but since i see it regularly i can only assume that the charts were right. Personally I like to pin my firewalls to my sidewalls with small dowels cant be too careful. The other fact is I dont fly glow anymore I use gassers so I dont worry abt the nitro on my CA.

Joe