Waterstop, as the name itself suggests is an important element of concrete structure which is used to stop the flow of fluids like water from joints. It is embedded in concrete joints to stop the flow of water from them. Waterstops are commonly manufactured using extruded plastics like polyethylene (PE), flexible polyvinyl chloride PVC and thermoplastic vulcanizate rubber (TPV). Extruded Thermosets like styrene-butadiene rubber, natural rubber, neoprene rubber and formed metals such as copper, stainless steel and carbon steel are also commonly used to manufacture waterstops.