Winsor & Newton Distilled Turpentine is a fast evaporating, highly refined essential oil with the strongest thinning & brush cleaning power of all Artists grade solvents. It is suitable for removing varnish, including Dammar Varnish. Distilled Turpentine makes a viscous mixture. It is the most hazardous & strongest smelling solvent used by artists. Keep the bottle tightly closed and away from light to prevent oxidation.