Gp Gelcoat Resin

Gelcoat is a polyester coating that is often used to finish molded fiberglass construction projects or repair damaged gelcoated parts. Here are some tips for applying gelcoat:

Clean: Clean the area and all tools with acetone before applying gelcoat.

Choose a shady location: Avoid working in direct sunlight.

Apply in layers: Apply gelcoat in 4-5 layers at approximately 5 mils each, allowing 15-20 minutes between layers.

Use a thickness gauge: Use a gelcoat thickness gauge to ensure proper thickness.

Use a spray gun: Spraying gel coat is recommended for more accurate and consistent coverage.

Initiate: Gelcoat should be initiated (catalyzed) to set up to the point that you can touch it with a glove and not have it come up on your finger in 45-60 minutes from application. Temperatures should be between 60-80 degrees F.

Sand: Once the coating has cured, it should be block sanded using a 250 wet grit paper to remove all brush marks and high spots. Then, wet sand with 320, 400, and 600 wet grit paper, buff, polish, and wax