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Fiberglassing The Stringer Extensions To The Transom #Bertam25

30 marzo 2025 · 19 min · 14K visualizzazioni

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Fiberglassing stringer extensions to the transom of a Bertram 25 requires a strategic approach to material layering and surface preparation. To ensure a chemical bond without sanding, use a non-waxed, polyester-based structural repair putty as a base.5:09 When laminating 1708 biaxial fiberglass over complex angles, cut the fabric into progressively larger pieces to achieve a flush transition.6:13 To manage tight radii and wrap the glass around the transom, cut relief slits into the fabric to allow the material to fan out and maintain surface contact.7:01 Apply a fillet of structural putty to create a smooth transition ramp before laying the wet fiberglass.12:36 Work wet-on-wet to allow for manual contouring and shaping of the laminate before the resin cures.13:17 Leaving the bottom edges open ensures potential drainage.8:00 Proper planning and dry-fitting the fiberglass pieces before catalyzing the resin prevents errors during the fast-paced layup process.7:36

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