Global Colours Polyurethane Matte Varnish is a concentrated glazing medium for artists, which produces a final clear matte protective coating of the toughest degree. It is a hard polymer producing a non-tacky concentrated glaze, designed hard surfaces where flexibility is not needed; e.g. concrete, wood, or boards.
For varnishing, use this product undiluted. Evenly apply slowly with a soft, broad brush in the direction of the wood grain. Allow to dry for several hours between coats, 2 to 4 hours is recommended, as coating before the previous coat has dried can cause the varnish to dry cloudy. Do not apply more than 3 coats in one day. Dry time will also vary depending upon weather conditions and temperature. Can be sanded gently after drying for 24 hours.
Apply 3 coats for water and alcohol resistance. Do not use over oil-based products. Suitable for indoor and outdoor application.