Synvar® Varnish An excellent, water clear, acrylic resin picture varnish for oil and acrylic paintings. Synvar® dries to a gloss finish, has excellent durability, good adhesion, no tendency to blush or bloom, good resistance to ordinary acids, alkalies and to moisture. Dries tack-free in less than a half hour under normal conditions. Will not darken with age. When used as a medium to mix with oil colors it will produce a soft chromatic quality. Thins with Odorless Turpenoid® or Turpentine.Synvar® Varnish An excellent, water clear, acrylic resin picture varnish for oil and acrylic paintings. Synvar® dries to a gloss finish, has excellent durability, good adhesion, no tendency to blush or bloom, good resistance to ordinary acids, alkalies and to moisture. Dries tack-free in less than a half hour under normal conditions. Will not darken with age. When used as a medium to mix with oil colors it will produce a soft chromatic quality. Thins with Odorless Turpenoid® or Turpentine.