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 have used it on some repairs. I would use it on a temporary, internal repair, such as the shower. I would not use it on an external application, such as a cracked tank. Won't hold up under pressure for long. Temporary applications because while very sticky, it will work loose under many applications.
