Re: dull spot in gelcoat
Well, if the dull spot is caused by minor scratches (fender rubs, canvas or plastic cover) you could probably buff it out with some compound. Personally I use Meguiars oxidation remover with a wool buffing pad on slow speed, however don't let the buffing pad stay in the same spot. Move the buffer around and over the area so you don' t burn the gelcoat. You may have to apply the compound and work the area a few times to get it back to a high gloss, but it works very well. If the dull mark is from deeper scratches you may need to first go over it with some wet sanding paper (start with 800 grit and work up to 1500 grit, then finish it off with the buffing compound. That should do it. If the area is smaller than a basketball, it shouldn't take more than 15 - 20 minutes. One word of caution, be careful with the buffer if there is hardware or wires around the dull area. The buffing pad can catch this and either rip out the wiring, or possibly take you for a ride. If the area is wide open, it's a piece of cake to fix.. Hope this helps!