MINWAX "Helmsman indoor/outdoor spar urethane is not water based. MINWAX does produce a polyurethane water based product sold as MINWAX Super Fast-Drying Polyurethane For Floors. I used the Minwax indoor/outdoor HELMSMAN clear semi-gloss spar urethane 8 years ago, applying 6 or 7 coats between light sanding with steel wool. The only change is a very slight darkening of the oak boards. Of course my 51 was not rebuilt as an original, and for that reason I would recommend Mike B's suggestion of black paint and POR-15 if that is your plan.
Last edited by BIG CHEVY 3600; Mon Feb 04 2019 04:41 PM.
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Modern ‘science’: the wonder of a
The ‘baseline belief’ of astronomy:
“Any day now, we’ll pick up a tiny,
coded signal from outer space. Then
we’ll know for certain that there is
intelligence out there, because coded
information does not arise by chance”
The ‘baseline belief’ of biology:
The precisely coded genetic information in
every cell would fill many books…
but we know for certain that no intelligence
could have created life.”