I have a 1999 Pathfinder 17t and over the weekend hit something up in the front drivers side of the boat that has now exposed an area about 5" long by 1" - 2" wide where the side of the boat meets the bottom. There area also spider cracks coming from where the damage occured. I tried a product called WaterWeld and it worked short term but has recently open a small crack in it. The fiberglass was not damaged just the outside coating over it. How should I go about fixing this?