Item: AWL T0016-QT Manufacturer: OT0016/1QTUS (OM3131) Awlspar Classic Spar Varnish is a phenolic tung oil varnish used for bright-work protection against water and weather. For use above the waterline only. The reducer should be used to thin, reduce, or clean up after use. Should not be used in any urethane or epoxy coating. Specially formulated for use with Awlspar Classic Spar Varnish M3131.