How to Repair Gelcoat

Beginner 1 hour 11 steps 39393 views Rating: 3.8/5 Published: 2026-06-20

Use a rotary tool with a burr bit to taper the edges of gouges.. Sand out small scratches with 80-grit, 150-grit, and 240-grit sandpaper.. Wipe the surface of the damaged area with acetone to clean it.

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Steps

1

Use a rotary tool with a burr bit to taper the edges of gouges.

Step 1

Use a rotary tool with a burr bit to taper the edges of gouges.

2

Sand out small scratches with 80-grit, 150-grit, and 240-grit sandpaper.

Step 2

Sand out small scratches with 80-grit, 150-grit, and 240-grit sandpaper.

3

Wipe the surface of the damaged area with acetone to clean it.

Step 3

Wipe the surface of the damaged area with acetone to clean it.

4

Tape all the way around the damaged area with painter's tape.

Step 4

Tape all the way around the damaged area with painter's tape.

5

Purchase a wax gelcoat repair kit that matches the color of the damaged spot.

Step 5

Purchase a wax gelcoat repair kit that matches the color of the damaged spot.

6

Mix the new gelcoat according to the manufacturer's instructions.

Step 6

Mix the new gelcoat according to the manufacturer's instructions.

7

Press the gelcoat onto the damaged area with the mixing stick.

Step 7

Press the gelcoat onto the damaged area with the mixing stick.

8

Let the gelcoat dry for at least 8 hours to cure.

Step 8

Let the gelcoat dry for at least 8 hours to cure.

9

Sand down the repaired area with 80-grit, 240-grit, and 400-grit sandpaper.

Step 9

Sand down the repaired area with 80-grit, 240-grit, and 400-grit sandpaper.

10

Buff the repaired area with an electric buffer and rubbing compound.

Step 10

Buff the repaired area with an electric buffer and rubbing compound.

11

Apply a coat of wax to the buffed area to finish.

Step 11

Apply a coat of wax to the buffed area to finish.

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