How to Repair Fiberglass Cracks on Boats

People use fiberglass boats in various kinds of water activities like island hopping, diving and fishing. Many of them use such reliable water vehicle because they are made from inexpensive, durable and light materials. Despite all these wonderful qualities, these things are subject to wear and tear. Furthermore, there are unavoidable incidents that take place while people are afloat while riding their boats like collisions and accidental bumps. By learning how to repair fiberglass cracks on boats, they can easily solve such simple problems.

Materials Needed

When trying to find out how to repair fiberglass cracks on boats, people need certain materials. These include marine-type gel enamel, resin applicator and fiberglass cloth. Also part of the job is a small paintbrush for applying enamel. Meanwhile, epoxy resin is very important in filling out holes and cracks all throughout the boat. Finally, bring in sandpaper, which is vital in restoring the smooth texture and appearance of the repaired parts of the vessel.


Just like all the tasks out there, this one puts safety as one of its priorities. To ensure safety, use rubber gloves when handling and applying the materials for this job. Some of these important materials contain harmful chemicals that can be very irritating to the skin. Furthermore, cover all those precious eyes with safety goggles to prevent wayward chemicals from entering and affecting this all-important part of the human body.

When the vital parts are covered, simply check and mark the different cracks in the boat’s body. Make it sure not to skip any of them. Repair the imperfections by applying epoxy resin in each of them. In order to do this, use the resin applicator. This particular must be fast in order for the resin not to dry out right away. Never let this material stand for longer periods because it is quick drying.

Put a thin coat of resin on every void and crack. Top each of them with a layer of fiberglass cloth. Place the layer of cloth right away after applying the resin. By doing this step, the fiberglass cloths are held tightly in place.

For four to six hours, wait for the solution to dry out completely. Next thing to do is to put a small amount of water on sandpaper. Use it to level the patches as well as the rough edges that may have been created while the boat is under repair. This particular step must be done carefully and slowly. It is highly important to take note that overdoing this step can result in something undesirable.

Get the paintbrush and then use it to put a coat of marine gel enamel on the repaired parts. After this, the repaired areas look significantly shiny and newer than before. The marine gel enamel will also serve as protection for the repaired parts from too much exposure to seawater and all the accompanying conditions.

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