I did my first gel coat repair last week and was pretty easy. I used 200, 600, 1500 grit sandpaper, a Dremel , a wool buffing pad , maguires 49 and maquires boat wax. You can't even tell it was there. I didn't even have to use the power buffer if you have the wool buffing pad. Make sure you put packing tape over the gel when it is wet. I didn't on the first try and I had to go fill a small air hole after.
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