CEMflex VB is a steel plate waterstop that can seal construction joints horizontally or vertically up to 8 bar of water pressure. It has passed animal manure and drinking water approvals according to European standards. Installation is simple as it requires only 3 cm of concrete cover on both sides and can be placed into fresh concrete without special equipment or welding in any weather. CEMflex VB provides a permanent seal of concrete joints through a coating that chemically reacts during curing to swell and crystallize, sealing the joint without disrupting concrete sintering.