I have heard that epoxy can be ised too. That's been my Ace in the Hole backup in case I screwed up soldering, lol. Do you remember what type of epoxy you used? It sounds like it was a lifetime ago and now it seems there's more types of epoxies than stars in the sky, lol.
Hi John,
I don't know what someone else may have used, but this question sparked a memory how local gun shops in the 1950's and 1960's were franchised by the company that made Cutts Compensators and "Add On" Vent Ribs, to install them on modern shotgun barrels. They had a proprietary Epoxy supplied by the company to install them. In the 1980's, I spoke to an old gunsmith who had installed hundreds of those Vent Ribs and Compensators, and he clearly stated none ever came loose in use.
I don't know what that epoxy was, but I do have plenty of experience with one epoxy that has been used for over 60 years to glue wood or fiberglass handguards on modern High Power, Big Bore, National Match Rifles. M1 and M14 rifles were shot in 10 round "Rapid Fire" Stages of fire with a 60 or 70 second time limit. The epoxy was glued to the barrel on both rifles in at least one place, if not more. Once done properly, it was not necessary to re-glue or re-epoxy for the entire 4,000 to 6,500 rounds life of the National Match Barrels. Matter of fact, if some other part was damaged and the epoxied parts had to be taken off for replacement during or after the life of the barrel, we had to use a sort of Heavy Duty "Heating Machine" that ran a low power electric arc through the piece to heat it up enough the epoxy would let go, but not ruin the barrel.
I think that and the info on gluing Cutts Compansators and Vent Ribs would be far more abuse than any epoxy would have to stand up to with a muzzle loading shotgun that has less recoil impulse than modern powders.
The Epoxy we used and I still use to this day is called Hysol Epoxy Patch Repair Kit. It was originally made by the Dexter corporation in Seaforth, NJ, but eventually Loctite bought them out. We used the white colored kits on active duty, as that was traditional, but I have also been using the BLACK Color "11C" kits for over 25 years that is the same formula as the White Color kits, just a different color. The Black 11C kits would blend better on gun barrels and BTW, the Cutts Compensator folks used a Black color epoxy as well. Below is a link to just one place you can buy the kits individually, though I think Amazon and other places sell it as well.
http://www.techni-tool.com/512CH435
Now, there are some important things to know when using this or any epoxy so it will adhere and last properly.
First, where you want the metal to adhere, it MUST be clean and free of bluing or browning and any oils or greases. This means it has to be bare and clean metal. So you usually sand the metal bare and clean at least once or twice with Acetone and then don't touch the metal with bare finger tips or any source that may/will contaminate the epoxy joint.
Second, there is a "working time" on all epoxies and you must finish setting up the parts to be epoxied within that time. This epoxy has plenty of working time to do one rib, either the top or bottom rib, but I would not try to stretch it to do both ribs at the same time. Better to mix enough for one rib at a time and then go back and do the other after the first one has time to cure.
For clean up of any epoxy that "squooshes out" where you don't want it to remain, best to use Acetone wetted Q Tips in tight areas and maybe Acetone wetted paper towels for larger areas. Don't try to use them over and over, though. Best to use fresh wetted Q Tips or paper towels and throw them away and use more as you need them.
Gus