Waterstop-RX is a flexible strip concrete construction joint waterstop that provides a positive seal by expanding upon contact with water. Waterstop-RX is an active waterstop that functionally replaces conventional passive PVC dumbbell waterstops. Waterstop-RX is designed for both continuous and intermittent hydro-static conditions and has been successfully tested to resist 231 feet (70 m) of hydro-static pressure.
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