There is no need to worry about making a daggerboard, centreboard, or
rudder out of solid wood. Visit your nearest sailing facility and look at
all the centreboards, daggerboards, and rudders made of solid wood. The
fact that your board is glued up means it will not warp. You can look at
the end grain to see which way the two pieces are oriented. Put a couple
coats of polyurethane varnish on it and refinish it every few years.

I've never put epoxy resin on oak but peope who have say it's only
necessary to sand the surface of teh wood to roughen it up a bit. Oak
contains tannin, and acid, and acids dilute epoxy rdeucing its bonding
strength. One way to clean up epoxy resin that has not cured is to use
vinegar, lemon juice, or some other mild acid.


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