We had to do an emergency fix on our tub. We planned on changing out the tub for a new shower install in the future. This came up a little unexpectedly and needed immediate attention. Marine Epoxy did not last very long (few months). We’ve moved to using a silicone to patch it. Hopefully it lasts!
Check out the Silicone on Amazon: https://amzn.to/2VWL4X3