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VACUUM Bag Fiberglass Boat Core REPAIR - Will it HOLD?! - E013

7 de octubre de 2023 · 18 min · 15K visitas

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To repair a delaminated bow section on the sailboat Antidote, the owner prepares the hull for vacuum bagging by installing custom-cut wooden braces to maintain the deck's crown. He replaces the existing core with G10 material under the staysail fitting, using a diamond-blade tile saw for precise cuts and adding relief cuts to accommodate the hull's curvature. To ensure a reliable seal, he tests a GAST DOA P704-AA vacuum pump on a mock-up, identifying that improper tensioning of the bagging film around air connectors causes pressure leaks.9:58 He feathers the edges of the core material with 60-grit sandpaper and drills relief holes at six-inch centers to facilitate resin flow. During a dry run on the bow, he practices pleating the stretch-a-lon film to prevent bridging at inside corners. The system successfully holds a vacuum after he corrects his sealing technique. Proper bracing and meticulous attention to bag sealing are essential for achieving consistent pressure during vacuum-assisted fiberglass repairs.

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