Bostik Rito Waterstop is a versatile, high performance waterproofing liquid and is suitable for waterproofing roofs and walls, blocks, foundation works and a wide range of backgrounds. With Bostik Rito Waterstop, there is no priming required. It bridges cracks up to 5mm and fills voids or expansion joints to 10mm.BenefitsVersatile Waterproofing LiquidContains no solvent or bitumenSeals and protects even in the wetMS Polymer TechnologySuitable for use on a wide range of backgrounds