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Next, carefully apply the gelcoat, allowing for minimal excess, to the damaged area.
Now, use clear tape (Scotch) and press it over the repair. This will help aid in curing as well as eliminate a lot of sanding.
Here, the tape is covering the repair. The excess gelcoat will be sanded off later. Let the repair cure for a day and then take the tape off to see if the gelcoat is hard. If it is still a little sticky, leave the tape off and let it cure for another day.
Gelcoat cracks are handled the same way. Scratch a tiny groove in the gelcoat first to get out dirt and give more surface for the new gelcoat to attach to. Use a razor blade to apply the new gelcoat.
Tape is applied to the repair and then allowed to cure.
Once the gelcoat is cured, it's time to sand the area using 400 grit sandpaper. Wrap the sandpaper around a small eraser or piece of wood for support and a flat surface. Wet the sandpaper with water and a small amount of soap. This will prevent the sandpaper from clogging. Work up to 600 or 1000 grit sandpaper and then go to a polish. I've found Meguire's Heavy Duty Oxidation Remover to work very well in removing the remaining scratches. Finish off with a good coat of pure carnuba wax.
That's it! Just like new.
