With all kudos to mscic and others, I've had better results with poly-u and dope than epoxy. I may have had a bad batch, but the epoxy I used peeled off after several years. Not a big deal, just roughed up the surface again and coated with dope. <div>
</div><div>I also have used Formula U by Pactra, don't know if it's available any more. Sig Stix-It, Balsarite, and K&B Super Poxy also work. Dope does break down with exposure to nitro, especially higher percentages. </div>