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Fiberglass repair techniques for filling decommissioned through-hull openings and instrument cutouts involve creating a 12-to-1 bevel around the hole to ensure structural integrity.8:47 After removing old through-hulls and seacocks, the process requires backing the opening with a plywood plate, then layering 9-ounce woven fiberglass mat saturated with epoxy.1:35 Using a template traced onto plastic allows for pre-cutting tapered patches, which are applied from smallest to largest to build up the necessary thickness.4:49 A peel ply layer applied over the final wet patch creates a smooth finish and absorbs excess resin.6:09 For stubborn stainless steel screws that resist drilling, an angle grinder serves as the primary removal tool.0:26 A 3D-printed through-hull removal wrench can successfully extract seized fittings.7:40 Successful lamination benefits from a three-person workflow: one person cutting material, one applying resin, and one squeegeeing the layers.9:57 Proper preparation of tools, including spreaders, rollers, and acetone, remains critical for managing the curing time of epoxy.11:33

Más de Sam Holmes Sailing

Hundreds of miles of rough sailing only to be turned away from our dream destinationoct 2026Making big miles offshore sailing through Indonesiasept 2026Orca sighting! we repair one daggerboard only to break another onesept 2026Sailing to Maratua, a rarely visited Indonesian island sept 2026

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