[joseeli8797]

The only way to truly get rid of stress cracks or spider cracks as some call it is grind the cracks down into the fiberglass almost all the way through the fiberglass and then re lay fiberglass let it dry grind or fair it smooth, now you got to cover it with gelcoat past that you learned how to make in the last reply and fair it smooth now mix some pigment with gelcoat match the color to your boat, add wax solution and mek (catalist, Hardner ) spray on surface or brush on let dry sand smooth with 600 grit sand paper and buff out with 3m super dutty rubbing compound and you should have a masterpeice. Hopefully not a Piccaso good luck! P.S. my real advice is that crack only bothers you and is insagnificant [ Don't Worry About It!]