How To Repair A Boat Stringer
How To: TRADE SECRET: Fibreglass boat repair – replacing stringers
Fibreglass boats are known for their depression maintenance and durability. Even so, with structural damage to the stringers a common issue, it's essential to know how to brand a replacement that volition last.
Although fibreglass boats tend to require less maintenance than their wooden counterparts, they're not without problems. They endure from many of the same age-related problems of fatigue and moisture experienced by traditional wooden boats, likewise every bit the usual damage from collisions, groundings and the forces of nature.
Making sure your gunkhole stringers are healthy and strong is an essential part of fibreglass gunkhole maintenance. Although it'due south possible to supersede small sections of the stringer, information technology'southward often easier to make a full replacement which ensures there is no remaining damage left below the deck.
To supplant your stringers, follow this uncomplicated seven-step method:
- Prepare the surfaces
All surfaces should be clean, dry and sanded. Remove whatever traces of contamination by wiping the surface and drying with paper towels. - Mark the expanse
Before removing the damaged stringer, marking out its position so you lot can make sure you put the replacement in the same place. Information technology's a skillful idea to mark these in abroad from the repair area so they will not be disturbed when the surface is prepared prior to bonding. - Remove the damaged stringer
Remove the stringer and core. Use a grinder to cut the tabbing at the core/hull articulation just be sure not to cutting into the hull laminate. Measure the thickness of the fibreglass peel so that it can be duplicated. - Brand the core
Using the same blazon of wood every bit the existing core, cut a piece of the timber to fit the size and shape of the core in the removed stringer. Dry fit and trim the new piece for a adept fit. - Sand the surfaces
Abrade the bonding surfaces by sanding with 50-dust newspaper and brush the area free of dust or loose material. Sand the bonding surfaces of hardwood or epoxy coated stringers with 50-grit sandpaper.
- Bail the core
With a resin/hardener mix, moisture out all contact surfaces of the hull and core. Apply a liberal amount of thickened epoxy/404 Loftier-Density or 406 Colloidal Silica mixture to one side of the contact expanse. Push the stringer in position with firm manus pressure. Thickened epoxy should squeeze out of the articulation. Shape the squeezed out epoxy into a fillet and if necessary apply additional thickened epoxy to the joint for a smooth 12mm radius fillet. Brand sure you clean upward any excess epoxy before it cures.
- Finishing
Now you have successfully replaced the stringer, all that's left to do is supervene upon the fibreglass skin and your deck will, one time over again, be fully supported.
If you've got a repair you're unsure virtually, visit WSI's dedicated support page for video tutorials, guides and expert advice.
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Source: https://epoxycraft.com/top-tips-best-ways-to-use-epoxy/trade-secretreplacing-stringers-on-your-fibreglass-boat/
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