treating the surface with pre-stain wood conditioner helps prevent streaks and blotches by evening out the the absorbtion of oil based stains it can be applied over any wood like pine, alder, birch and maple recommended uses on soft or hard woods before using oil-based wood stains assures even stain penetration on soft woods such as pine, fir and spruce prepares the wood to avoid blotching and streaking wood maybe stained immediately after application coverage is approximately 75 square feet per quart
