How to Remove Scratches from Your Boat’s Gelcoat

Scratches on your boat’s gelcoat can be a frustrating issue, but with the right techniques, you can restore the shine and luster of your vessel. Whether you’re dealing with light surface scratches or deeper gouges, there are several steps you can take to get your boat looking its best.

Wet Sanding for Light Scratches

For light scratches that don’t penetrate the gelcoat, wet sanding can be an effective solution. Start by using a 180-grit sandpaper and work in a circular motion, keeping the area well-lubricated with a mixture of water and mild soap. As the scratch begins to disappear, gradually increase the grit of the sandpaper, moving up to 320-grit and beyond, until the surface is smooth and even.

Filling Deeper Scratches

If the scratches are more severe and you can feel them with your fingernail, you’ll need to fill them with gelcoat paste. Prepare the area by cleaning it thoroughly and creating a V-shaped groove along the length of the scratch. Mix the gelcoat paste with the appropriate pigments to match your boat’s color, then apply it to the repair area. Allow the paste to cure, then sand and buff the area until it blends seamlessly with the surrounding gelcoat.

Buffing and Polishing

Once the scratches have been addressed, the final step is to buff and polish the gelcoat. Use a high-quality buffing compound and a power buffer or orbital polisher to restore the shine and luster to your boat’s surface. Be sure to work at a slow speed and use a light touch to avoid creating swirl marks or damaging the gelcoat.