On Wed, 07 Mar 2007 18:17:19 GMT, "Gordon Wedman"
wrote:

A coat of thinned epoxy followed
by several coats of regular should do it. Don't know about UV inhibitors in
epoxy but it might be worth asking about as they would help preserve the
wood.

I've had bad luck with the epoxy turning cloudy after a while and
ruining the look of the varnish.