This tough and durable polyurethane varnish from Rustins is perfect for use indoors and outdoors. Suitable for a variety of surfaces including bare wood, hardboard, MDF and unsealed cork, this satin clear varnish will enhance the beauty of your wood while resisting cracking, peeling and blistering. - Suitable for use on interior and exterior wood - Resistant to cracking, peeling and blistering - Can also be used as a sealer for concrete - Touch-dry in as little as 30 minutes - Recoatable in approximately two hours - Low-odour and non-toxic water-based formula - Resistant to alcohol and boiling water - Non-yellowing for long-lasting performance