[quote=Dogboy]I would use West Systems Six-10. It is epoxy rather than silicone (which is what the 3M products are), so it is a structural adhesive rather than just a sealant. It comes with a self-mixing nozzle which would allow you to just inject the epoxy into the gap. I used this adhesive to re-bond about a 2-3 foot long section of a Hobie 14 deck back to the hull (the joint had just been filled with silicone) and the end result was a very solid, water-tight joint.
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