A liquid designed to penetrate into wood and impart water repellency and a moderate preservative protection. It is used for millwork, such as sashes and frames, and is usually applied by dipping. Found on http://www.encyclo.co.uk/local/20933
A water repellent that contains a preservative which, after application to wood and drying, accomplishes the dual purpose of imparting resistance to attack by fungi or insects and also retards changes in moisture content Found on http://www.encyclo.co.uk/local/21113