PrimeSource MasterSeal 590 Hydraulic Cement

MasterSeal 590 Hydraulic Cement Formerly known as Waterplug Hydraulic Cement, MasterSeal 590 is a quick setting hydraulic cement used to instantly stop running water or seepage through holes or cracks in concrete and masonry, and as an anchoring cement to secure bolts or posts in horizontal concrete or masonry. It expands as it sets to lock into place even under constant water pressure. WARNING: This product can expose you to chemicals including SILICA CRYSTALLINE (AIRBORNE PARTICLES OF RESPIRABLE SIZE) which is known to the State of California to cause cancer. For more information go to

Quick setting hydraulic cement used to instantly stop running water or seepage Anchoring cement to secure bolts or posts in horizontal concrete or masonry Expands as it sets to lock into place even under constant water pressure 10 Lb.