Epidermix is great and can be worked like wood - cut, filed etc. I have used it in boat repairs. It does however mix into quite a thick paste so it is difficult to impregnate fiber, if you are trying to incorporate fiber into the bond. There are thinner epoxies widely used in the boat building industry. Unfortunatly the company I used to get mine from no longer operates in Gauteng but your LBS - local boat shop - shoud be able to advise!