When finishing white pine with Minwax clear gloss polyurethane (oil base). The first coat obviously raises grain and requires light sanding and another coat. Now recently I have had to apply a third coat and still have spots that when looking across the glaze appear to have been missed. I know to use a sanding sealer before staining (no stain in this case). Suppose that would be a better seal than the poly?
Suggestions will be appreciated. Kenneth