Rustins Quick Dry Polyurethane Varnish Gloss Clear is a water-based, non-yellowing polyurethane varnish that is tough and durable and will resist cracking, peeling and blistering. Can be used on bare wood, hardboard, MDF, and unsealed cork. This product is suitable for outdoor and indoor joinery in both hard and softwood, doors, windows, garden furniture and conservatories, and can also be used as a sealer for concrete. Features: Low odour and Non-toxic, Resists alcohol and Boiling water, For all types of interior and exterior wood, Long-lasting wood protection, Will resist cracking, peeling and blistering.