I tried to fix a pair of hip boots with Goop, and had a hard time getting it to stick. Did you do anything special to prepare the surface? I tried roughing it up with sandpaper and wiping it down with isopropyl alcohol but it still fell off.
Were they LaCrosse by chance? That’s the only brand I’ve had trouble sticking Goop to. Something about the rubber compound, it’s slick as heck and you are right on, roughing it up doesn’t seem to work. I’ve got Goop patches on my Xtratuf boots that hold just fine.
But for waders, it sticks to anything. Nylon, neoprene, Gortex, etc.
The only other problem I’ve had with Goop is not keeping it on, but getting it off. We put a hole in a boat once in Canada and I patched it with a Bud can cut flat and a bunch of Goop. Back home a few weeks later the repair shop called an said what is this stuff? We can’t get it off. So that boat lived the rest of its life with a Bud can patching a hole in thhull.
Grouse