To make a fiberglass repair patch, first, gather all the necessary materials such as fiberglass cloth, epoxy resin, hardener, a mixing cup, a brush or roller, and a pair of gloves. Clean and roughen the damaged area using sandpaper or a grinder to ensure good adhesion. Cut the fiberglass cloth slightly larger than the damaged area. Mix the epoxy resin and hardener according to the manufacturer's instructions in the mixing cup. Apply a layer of the mixed epoxy resin on the damaged area using the brush or roller. Place the fiberglass cloth over the wet resin, ensuring it covers the damaged area completely. Gently press and smooth out any air bubbles or wrinkles with a brush or roller. Apply another layer of the mixed epoxy resin over the fiberglass cloth, ensuring it saturates the cloth completely. Smooth out any excess resin and let it cure as per the manufacturer's instructions. Once fully cured, sand the patch lightly, and the fiberglass repair patch is complete.
