Fiberglass Boat Repair Techniques

Fiberglass Boat Repair Techniques
Fiberglass boats can endure small wears and tears but more serious damage requires elaborate repairs. Use of good quality materials and well thought-out repair techniques can effectively restore your vessel.

Fiberglass Boat

A fiberglass boat is constructed of reinforcing fabrics and core materials that are bonded together as composite structure. The materials are bonded with plastic resin and are easy to repair. Damages in a fiberglass hull can easily be fixed with glass fabric and resin. Repair techniques include de-waxing, grinding, masking, molding, layering of fiberglass fabric and gel coating.


Repairs are necessary for impact damages and surface wear, such as abrasion, fatigue, bending, gel coat blister and water damage. In most cases lamination is necessary to restore the boat. Do not try to retain destroyed fiberglass; always remove and replenish it with new laminate.


If your fiberglass boat has damage above the waterline level, use polyester or resin. Use epoxy for additional strength but not if you have a gel coat surface. For all underwater damages, use epoxy. Fiberglass epoxy produces stronger, more durable laminate and temperature-resistant composite parts for your fiberglass boat.

Article Written By Rona Aquino

Rona Aquino began writing professionally in 2008. As an avid marathon runner and outdoor enthusiast, she writes on topics of running, fitness and outdoor recreation for various publications. Aquino holds a Bachelor of Arts in communications and English from the University of Maryland College Park.

Don't Miss a Thing!

All our latest outdoor content delivered to your inbox once a week.



We promise to keep your email address safe and secure.