How on earth do you equate my previous post to something as far out as, epoxy with vynalester will be vulnerable to galvanic corrosion??? (I assume that it was a "flippant", throw away remark and take it as such) The point was that it is always better to make repairs with the same materials that were used in the original laminate layup when it comes to "fibreglass" repairs and that there is a, not insignificant, problem when finishing off the repair "to original" condition when polyester gel coat has to be applied over freshly set epoxy. It is a situation that no professional boat builder or repairer would put themselves in, and if you think differently simply ask one.