Reducing the level of water in the wood naturally reduces the level of organic growth associated with damp surfaces, extending the lifespan of the wood. Applies easily and soaks in quickly and with less dripping, allowing you to complete your project fast and with less mess. Water Sealer is designed to prevent damage caused by water. It does not prevent the natural greying of the wood that is caused by UV radiation due to its transparent nature, although it does make greying more uniform. Note: The finished surface is influenced by several factors including wood species, previous treatments that may have been used, and the condition of the wood, therefore a trial application is always required.