Johnstone’s Trade Woodworks Durable Quick Dry Polyurethane Varnish Satin is a specially formulated water-based varnish for use on doors, windows, furniture and all interior smooth-planed timber. It is non-yellowing and provides a hardwearing, scratch-resistant finish that enhances the natural beauty of the wood. Reinforced with polyurethane for superior durability, our Woodworks Durable Quick Dry Polyurethane Varnish will cover approximately 12 square metres per litre depending on the nature and porosity of the timber, and is touch dry in one hour and recoatable after 2-4 hours, although conditions of high humidity will prolong drying time.