|Forum topic by jasonallen||posted 01-08-2015 10:43 PM||1356 views||1 time favorited||8 replies|
01-08-2015 10:43 PM
I have never used polyurethane before. The only finish I have ever used is Minwax brushable lacquer. However, for this project I am using polyurethane because of the high possibility that a glass of water will be left standing on it. I used the same procedure that I have always used with lacquer.
1. Sand to 220
I used to use a coat of sanding sealer before my first coat of finish but I decided that wasn’t necessary and had good luck without it in the past. This time, with the polyurethane, after my first coat dried I found the grain was raised at least 1/16 inch. I sanded it smooth with 320 grit paper, being careful not to sand off all the finish and re coated. The second coat is doing the same thing. Am I doing something wrong? Do I need to use a sanding sealer in the future? Or is this just expected with polyurethane? It is being applied to red oak. I chose to used water based polyurethane after being told the oil based would have a yellow effect. Will the water based also prevent water rings from glasses?
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