Concrete Repair Concrete Repair Grouting Fast Setting Cement Crack Injection Surface Treatment Cementitious Slurry Waterproofing Membranes Waterproofing Coating Polybond (SBR Latex) An SBR (Styrene Butadiene Rubber) admixture designed to be mixed in various proportions with cement, sand and water to provide an economical and effective render and screed systems with water resistant properties.