Cabot 18042 Oil Based Spar Varnish, 1 Gallon, ClearHighlights: Size : 1 Gallon Clear durable finish Interior Exterior Gives protection for wood surfaces U. V. and weather resistant VOC Compliant Gives protection for wood surfaces For use on bare, stained or previously varnished interior and exterior wood surfaces including doors and trim, window sills, outdoor furniture, fencing, railing and wooden boats One gallon covers up to 300 400 sq. ft. depending upon surface porosity WARNING: Cancer and