Blackfriar Water Based Floor Sealer 5 Litre Blackfriar Water Based Floor Sealer is a clear, water-borne sealer designed for bare floors. Ideal for brick, masonry and concrete surfaces, and can be used as a dust proofer. Blackfriar Water Based Floor Sealer can be used beneath Blackfriar Professional Acrylic Floor Paint on porous surfaces. Aids by penetrating, binding and sealing porous surfaces for overcoating. Preparation Ensure the surface to be painted is sound, clean, dry and free from grease or any substance liable to give adhesion problems. Scrape off any old or flaking paint until you have a firm surface. Special attention should be given to areas under cars to ensure all oil, grease, dirt and road salt is removed. New concrete must be left for at least 6 months before applying Blackfriar Professional Water Based Floor Sealer. Application Stir thoroughly before use. Apply with a brush or roller working the paint in any surface imperfections. Blackfriar Professional Water Based Floor Sealer is not suitable for use over non porous substrates like PVC, thermoplastic tiles, quarry tiles, asphalt floors or granolithic concrete. Do not apply it on concrete surfaces treated with alkali containing liquids, areas subjected to rising damp or areas treated with PVA bonding solutions. Do not apply in cold (below 10°C), damp or humid conditions. If concrete floors are very smooth then pre-treat with Blackfriar Professional Acid Etch followed after thorough rinsing by Blackfriar Professional Water Based Floor Sealer. Coverage Rate: 10-15 square metres per litre per coat. Drying Time: 2-4 hours at 20°C. Allow to dry for a minimum of 4 hours at 20°C between coats. Full cure is achieved in 3-5 days at 20°C. Clean Up Remove as much product from application equipment as possible before washing with water. Do not empty into drains or watercourses. Some local authorities have special facilities for the disposal of waste coatings.