Part 1: Your Fiberglass Gelcoat
Used to produce a high quality finish on the surface of a fiberglass boat, gel coats are epoxy based or made of unsaturated polyester resin. Modified and applied to molds in the liquid state, gel coats are often mixtures of polyester, fiberglass, epoxy, glass, Kevlar, or carbon fibers. Designed to be durable and stand up to harsh elements and other outside factors, the substance is typically very thin and also resist harmful ultraviolet rays. The gel coat will often be colored to make the outside layer of the object more attractive.
Most boats you see will have a gel coat on the outside giving them the shine and protection from elements that boats need so badly. The ultra high glossy effect that most boats have is the result of a highly polished gel coat, and with the right treatment, you can keep items with fiberglass gel coat looking brand new all of the time.
Time and exposure will begin breaking down the protective barrier of the coat, leaving it dull and flakey. However, the beauty of fiberglass gelcoat aside from its ability to protect is the fact that it’s easily restored using simple to follow steps. The first step to restoration for fiberglass gel coat is similar to the first step of any restoration-cleaning. Add a cup of detergent to a gallon of warm water and use a sponge to thoroughly clean the entire surface. It’s also important to repair any cracks or inconsistencies in the coat for it to retain its integrity and keep from falling apart.
Secondly, it’s important to strip the gel coat of harmful grease and other substances that can break it down or cause it to appear dull. Also for waxing process, it’s important to remove any grease that may result in uneven distribution of the wax. Completely degreasing the surface of the gel coat will make it much easier to complete the next steps. Wipe the surface with a rag soaked in MEK or acetone, remembering to replace it when you run out of clean areas. During both of these processes it’s important that you protect your hands by wearing rubber gloves.