i stained and finished 1000sq ft of red oak for my parents. Second coat poly got pin head bubbles constantly throughout the floor. I didn't notice any on the first coat. Didn't shake the cans. May have stirred to much, may have worked it to much, may have put it on to thick. My folks said it's ok but it s not. I'm pissed I hurried so much. Either way I'm sanding again. Going to try a light sand and reapply under a cabinet before going all out. Any advice from wood finishers? Im sick but will fix it.
