Contrary to popular belief, fiberglass
will absorb water
. I suggest that if you have any nail polish aboard that you cover it with that until you can get it repaired properly. Before everyone jumps up and down because a woman suggested nail polish, here's why. It's relatively water
proof (the good stuff anyway), widely available, easy to redo and can be removed with ACETONE. I would suggest white or clear as the pigment may not be as easy to remove. In future, keep a two-part gel coat filler on board such as that made by "Plastic Padding" of Sweden
for even largish repairs
. It is a great product and easy to use, and when used with glass mat can even be used for larger repairs.