Built an edge grain walnut countertop for the laundry room. After two light coats of garnet shellac to enhance the depth I have started applying thin coats of Waterlox Orginial Sealer using the blue shop towel method. How many coats should be applied? At the moment there is about 5 and the last coat will be Waterlox Satin. The countertop will sit over the washer and dryer; there is not a sink.