Rubber particles form a more comfortable and durable non-skid surface than silica sand, and create a lasting texture that can withstand extreme traffic. Step 3. Use, If brushing or rolling gel coat, sanding will most likely be required in order to get an aesthetically pleasing final surface finish. It is thicker than standard resin, allowing you to build up a solid shell before adding layers of fiberglass. #1039/1040 Duratec Clear Hi-Gloss Gel Coat Additive is the preferred choice for any marine application above the water line. Spraying gel coat is recommended for more accurate and consistent coverage. Glitterflake is commonly used to repair damaged bass boats or to give any project a glittery surface. You can buy a gelcoat spray gun online or at your local paint store. The amount of MEKP you’ll need to use will depend on how much gelcoat you’re using and what brand it is. Now the real work begins. Start with 240 grit sandpaper (. Once gel coat has tacked up, about 20 minutes after final layer has been applied, lay-up of the part can begin. Applying the Gelcoat 1. For a glossy finish, Styrene Wax will need to be sanded off with 400 grit sandpaper once the gel coat has cured. Gel Coat must cure without presence of air; it's often done in a mold so it cures between the object fiberglass and the mold. Spraying gel coat is recommended for more accurate and consistent coverage. A red boat is usually red because the fabricator used red gel coat. With the passage of time, unprotected gelcoat will oxidize and eventually take on a chalky appearance. Once gel coat has tacked up, about 20 minutes after final layer has been applied, lay … It will affect the gelcoat's appearance in other ways. Read on for another quiz question. What is the advantage of polyester filler? After the sanding has been completed, several coats of polishing wax or compound will create a durable, high-gloss finish. Item #134-A is a pressure fed HVLP style gun. Buffing out an oxidized boat: 2Wet sanding scratches, then buffing: 4Filling gelcoat scratches on a white boat: 4Filling gelcoat on a colored boat: 6 Use a cloth to spread wax all over the gelcoat, and wipe the wax off once it's dry. Otherwise, if the scratch’s shape is irregular the gelcoat paste may bridge either side and leave a … The important one here is wax. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/4\/4c\/Gelcoat-Fiberglass-Step-1-Version-2.jpg\/v4-460px-Gelcoat-Fiberglass-Step-1-Version-2.jpg","bigUrl":"\/images\/thumb\/4\/4c\/Gelcoat-Fiberglass-Step-1-Version-2.jpg\/aid1366110-v4-728px-Gelcoat-Fiberglass-Step-1-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"