Hi all. I have a very large round cross section of parota which is going to be a dining table. 57" in diameter, 2.25" thick, and kiln dried. I've finished a few flat sawn parota slabs and they soak up liquid like crazy, so this end grain will be even thirstier. The final topcoats will be an oil-based varnish, either polyurethane or Waterlox. I think spraying a fast drying seal/base coat or two is going to be my best bet to aid in getting a quick and even build. My two options at the moment are either Zinnser Sealcoat or a vinyl sealer. Can anyone recommend one of these over the other, or any other ideas for my situation? Thanks!