Maine Sail, myself and others have addressed potting the core material properly in several threads.
I like the idea! However, I do have a question about sealing the hole in your vessel. Are you planning on the Butyl to prevent water from getting between the layers or are you drilling through solid glass?
If you're drilling through core then I'd consider adding some glass and resin to protect the hole from absorbing moisture. Other than that, it appears that the Butyl will do quite well in your application, and come apart easier that 5200.
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You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.
—Cpt. Mal Reynolds, Serenity (edited)
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