Originally Posted by DA17
Thanks for the input.
I was really trying to find a quick and easy solution and not go through all that process, for the tears are simply from damage not from stress.
Any other ideas out there?
In that case skip the cosmetics on the shiny side and fiberglass the back. Once the cracking has started the load is no longer evenly spread over the sheet and there is stress concentrated at the ends. Glassing the back will unify the panel returning the strength.
It will be easy. You just need to clean the back, slather on some epoxy then a bit or matting and repeat the matting and epoxy again. Rubber gloves, old clothes you can even use a disposable paintbrush. Half an hour. Use real epoxy, not polyester. Ace hardware has it all.