Bought a 79 s2 8.ob I am in process of getting keel repaired. I have a friend that is going to do work and has done firberglass repair but not on a boat. Would like comments on how to proceed.
crack keel
- Thread starter lukeb
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Ouch. I suggest you post this on the "Ask all sailors" forum on the main sbo site to get the benefit of more input. Typically you need about a 12:1 taper to the surface to get good adhesion and this may require quite a bit more effort than your friend expects. It is below the waterline so it doesn't need to be really pretty with new gelcoat, so perhaps epoxy resin is a better choice than polyester as you get greater bonding strength (gelcoat doesn't stick to epoxy resin well from what I understand). You may also make judicious use of some biaxial woven roving to add strength to the repair and ensure the crack doesn't return. It might not be pretty, but structural integrity is job #1 here. Absolutely NO BONDO as it absorbs water.
Bob
Thanks for information. Search internet under m3 products and was looking at m3 4200 and 5200. Know anything about these products.
Luke
Thanks for information. Search internet under m3 products and was looking at m3 4200 and 5200. Know anything about these products.
Luke
Yes, but caulk isn't going to fix this. 5200 is often used to glue the hull to the deck along with dozens of mechanical fasteners. 4200 is a slower curing version. You need a grinder and a lot of resin my friend or this crack will be back...and perhaps take you and the boat down with it.
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