The product for fixing on the walls of the strips of fabric in order to mask the cracks of those - ciLINNARTZ KURTLINNARTZ KURT
For holes and cracks in the fiberglass itself, you’ll either need to find a fiberglass repair shop or learn to fix fiberglass yourself. Some holes and cracks can be repaired using Bondo. Anybody who knows how to work with Bondo on automobiles will be able to help you with this. For lar...