System Three 1850S16 Clear Marine Spar Urethane Varnish Coating, 1 quart Can Available in Gloss or Satin finish. Formulated to cure properly over System Three epoxy products A high solids, VOC compliant finish Designed for marine and exterior wood surfaces Offers excellent protection from salt air and water Contains ultraviolet light absorbers which will keep wood looking beautiful even with constant exposure to sunlight