Fiberglass Repair – Using Gelcoat Over Epoxy

Nicks and dings in your fiberglass are common to any boat, whether or not it gets used often. Repairing damage to your gelcoat and fiberglass can seem intimidating, but when done properly, can be a simple and even quick repair.

In the video today, we look at a small fiberglass repair being done to the deck of a boat with a thick layer of gelcoat. Often times instructions and advice will indicate that using gelcoat over epoxy is ill advised because the 2 chemicals cannot bond chemically – but Brendan shows us how to properly prepare your surface and execute a repair that will bond and be a lasting repair based on a strong mechanical bond.

Check out our video of the day and dig into why we think a non-structural, cosmetic repair can be easily pulled off with proper preparation and near perfect execution.  Enjoy!

6 thoughts on “Fiberglass Repair – Using Gelcoat Over Epoxy

    • Brendan was using TotalBoat Gelcoat which contains wax. (we also make a waxless gelcoat)
      But good eyes! Thanks for watching and commenting!

  1. Do not get me wrong this guy is goooood. One question, how bad was the design on the boat??? If the vessel was made with vinyl ester resin, repair with vinyl ester resin, if the boat was manufactured with epoxy resin use epoxy resin for the repair
    Just saying

    • Using epoxy over the Vinyl Ester is considered by some to be MORE durable – Vinyl Ester is more brittle and the epoxy is less so. Another reason to use Epoxy is because by doing so you have created a secondary bond. The boat design is proven – it is an Olympic class – and you see in the video that the damage is in the cockpit along a well used track in the deck. Seems like a likely spot for a ding now and then. Certainly not a design flaw or build issue. thanks for watching and commenting.

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