Wood Kraft waterborne Acrylic-Polyurethane Spar Varnishes are clear coatings formulated to produce hard, durable finishes on interior or exterior wood. These polyurethane varnishes have superior UVA and UV-B absorption to protect the surface from the harmful rays of the sun and resist yellowing. Wood Kraft Spar Varnishes are low odor and form durable finishes that feature excellent abrasion resistance and protection against water, alcohol, and most household chemicals. This product dries quickly allowing multiple coats to be applied in the same day. These polyurethanes are self sealing and sandable: therefore, no primer/sealer is necessary.