EASYCare Algae Remove & Seal is a professional grade algae, mould and lichen killer, specifically designed to cleanse the surface of contamination and leave a durable seal to prevent moisture ingress and contaminants returning. This easy to use formula can be used on paths, patios, decking, walls, roofs and is ideal for use on garden furniture. Active ingredients work on the surface to clean, kill and seal in one simple application.