Exterior Oil is used for the treatment and maintenance of new and previously oiled outdoor wooden surfaces such as cladding, decks and garden furniture. Exterior oil provides a strong water and dirt-repellent surface that prevents the growth of mould and fungus, as well as providing UV protection. It is fast-drying, and enhances the natural colour and grain of wood. The water-based product is able to be diluted and eco-friendly, approved by the German Biological Building Association (IBR), so it is non-harmful to children, pets and vegetation.