Fixing #gelcoat cracks is one of the best ways to fall in love with your #boat again! Unsightly cracks aren't always a serious problem, and if there's no fibreglass damage below they're easy enough to fix in ONE DAY! br br You'll need gelcoat - the same colour as the area you're fixing; Colloidal silica or tiny glass spheres to thicken the gelcoat; A rotary tool with small grinding bit; sandpaper and your favourite cutting compound, polish and wax!