I'm definitely not a fiberglass expert, and most of my fiberglass experience has been structural (transom replacement), but this needed to get done so I thought I'd share. As you can tell from the video, the result wasn't as aesthetically nice as I may have hoped, but in terms of protection and smoothness, it seems fine for me. I definitely should have ground out more of the damaged section, and then built up a thicker coat before sanding it out and finishing, but the process would still remain the same.


I have used this same gelcoat to cover nicks before, but I was more interested in protection than appearance, so I didn't take the time to sand it down and finish it out like I did with this repair. Despite my error in not grinding out enough initially, I was surprised at how easy it was to get shaped and sanded into something that resembled the original form. I would say that fiberglass gelcoat repair is definitely something that a DIYer shouldn't be afraid to try.