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3 Ways to Laminate Fiberglass Patches for Boat Repair (One Works Better)
15 February 2026 · 17 min · 23K views
Hand feathers fiberglass patch edges on boat hull with roller.
What this video covers
Repairing deck holes or surface damage requires laminating multiple layers of fiberglass, typically using polyester resin and 1708 biaxial cloth. Three methods exist for layering the patches: starting with the smallest piece and increasing in size, starting with the largest and decreasing, or a hybrid approach.▶ 1:14 The first method creates a "step" at each layer that requires careful rolling to bridge.▶ 6:39 The second method risks snagging the fin roller on the edges of smaller top layers, which can shift or tear the glass.▶ 7:47 The third, recommended method involves laying the largest piece first, followed by smaller layers, and finishing with a final large piece that caps the entire repair.▶ 11:00 This top layer prevents the fin roller from catching on edges and simplifies the process for beginners.▶ 10:55 After rolling out air and excess resin, the repair should cure overnight before applying wax-containing gel coat to ensure a full cure and easier sanding.▶ 12:58
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