ARDEX WPM 1950 is a hydrophilic, swelling, polymeric rubber joint for use in areas of fresh water. Due to its particular chemical composition, ARDEX WPM 1950 remains unaltered over time even at maximum expansion. It is dimensionally stable even after numerous hydration and dehydration cycles while maintaining its ability to increase its volume.
At maximum expansion, in all its sections, ARDEX WPM 1950 is mechanically strong and elastic. The swelling process is controlled and designed to be compatible with fresh concrete.