Have you considered using the two-part epoxy/varnish that is used in
many restaraunts on bar counters (mentioned elsewhere in this thread)?
It's extremely tough, and while it can be scratched, you can also put
a coat or two of poly or spar varnish on top of it to make it clear
again once it gets scratched up enough that it needs to be redone (or
re-pour it, though it gets too thick that way). Any wear and tear that
would damage this would also go through poly and possibly into the
wood, allowing moisture in. It does have that 'plastic-coated' look
that most people on this group seem to hate, but if you really need
something tough, this may be the way to go. Cost could be an issue,
though. Look up info on Envirotex Lite, Aristocrat, and Famowood Glaze
I'm starting to think I should just go with the poly and see how it works
out for a year or so. At that time if there is a problem I could sand it
down and start over with the stuff you describe.
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