Flex Seal repair on grey tank.
Have any of you used a Flex Seal product to repair a crack in a holding tank?
Forum Discussion
I tried some Flex Seal spray to try and seal a small leak in a corner gutter. Awful stuff, never worked at all, just foamed and did squat. I've used Goop on a lot of stuff and it is pretty good stuff. I don't think JB Weld would work as well because it has no "give" when set.
