What have you used to fix a small, under quarter inch, hole in the heel of your rubber boots on your waders? I tried a patch but there is to much flex and movement in the rubber on the heel to hold up. I tried some epoxy but was not thinking. It dried hard and stuck insanely well to the rubber but cracked like crazy with the first step, zero flex at all in the epoxy. So, now I am back to square one. I was thinking about going to Lowes and trying to find the tool handle dip rubber coating stuff. Anyone tried it? What else could I try. I really dont want to spend another 200 bucks on waders. These are only two seasons old and doing really well, besides the tiny hole in the heel.