Johnstone's Durable Quick Dry Polyurethane Varnish is a specially formulated water based varnish for use on doors, windows, furniture and all interior smooth planed timber. It is available in either a gloss or satin finish and provides a hardwearing, resistant finish that enhances the natural beauty of wood.
Use our paint calculator to work out how much you need
Enter the dimensions of your walls, details of any gaps like windows and doors, and click calculate
Remember: It's probably better to have a bit too much than to order too little!
This is based on a coverage of 10m² per litre of paint and one coat of paint.
Make sure you always check the coverage on the product page before purchasing and, if covering a dark or bright colour, you may need two or three coats.