The Rito Waterstop Liquid is a self-levelling sealant for use on horizontal surfaces. It is solvent free and can be used in wet conditions. This easy to apply sealant is quick drying and ideal for ground works, tanking, flat roofs and for stopping leaks. It bridges cracks up to 5mm and is resistant to natural ground water which is aggressive to concrete. After it has cured completely, this sealant is impermeable to water. It is available in a 14kg size.