Intergrain NaturalStain (previously known as UltraDeck Timber Stain) is a long lasting, high performance water-based stain designed to transform the look of exterior timber. The enduring finish is made and tested to protect against Australia's harshest conditions as well as the abrasive effects of foot traffic, providing your timber with long lasting colour retention on every project. It lasts 5X longer than traditional oil-based decking oils and is guaranteed to never peel, flake, or blister*.