Cruising Mayavideo
Dock Talk Ep 2: Major Structural Fiberglass Repair To Our 40 Year Old Sailboat (Episode 42)
13 December 2020 · 16 min · 5K views · San Juan Islands
What this video covers
Mac and Jenny repaired structural fiberglass damage around the chain plate mounts on their 1980 Allberg 37-foot sailboat, Maya.0:34 After discovering hull indentations and water intrusion, they removed the chain plates and inspected the internal knees.0:43 They determined that failing tabbing on the bulkhead, caused by water damage, allowed the hull to flex and deform.8:00 The repair process involved removing the old knees, filling gaps between the bulkhead and hull with thickened epoxy, and fabricating new knees using 2-inch closed-cell foam cores.7:54 They created patterns for the fiberglass cloth and performed a practice layup on a mock-up before applying the final fiberglass layers to the hull.8:45 To manage dust during the grinding phase, they utilized plastic sheeting, an exhaust fan, and a shop vacuum.5:43 The project cost approximately $500, with materials and tool loans provided by professional contacts.14:04 A marine technology course at Skagit Valley College provided the foundational knowledge for the repair.14:37 Thorough site preparation and dry-run practice sessions are essential for successful structural fiberglass work.
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