I tried something different on the floors. After lightly sanding, I used 2 coats of Topcoat epoxy on the floors and then a floor polyurethane gloss above that for hardness and UV protection. I get lots of compliments as the floors looks glossy and wet. A coat of Topcoat is something like 60 coats of varnish, at least per Topcoat's advertisement on the packaging.
I've had the floors in place for a year now and no issues. Topcoat is inexpensive for epoxy at $60 for a gallon at Home Depot and is made for table tops and the like. It made for a beautiful and thick clear coat over the original flooring. I need to do one thin coat over the bottom of the boards now too. My only lesson learned is to seal the floors before applying Topcoat. Otherwise, you risk small bubbles. Those drove me nuts and I ended up sanding and re-applying to try to avoid. I learned later that sealing the wood first would have made the most difference. I tried a torch to remove bubbles and had only limited success. Bailey White 1979 C&C 36 Atlanta, GA
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