Wet Mils, Dry Mils, and Quality Control WOODWEB
You want a finish between and 5 mil when dry. Spray around 5 and 6 mil wet. For their Krystal conversion varnish, which is about 40% solids, 1 wet coat at 6 mil will be ~ when dry. Therefore, first seal coat is ~ mil dry, scuff sand which removes a little of that, then a second coat brings you to just under 5 mil dry.