LEAKMASTER LV-Z Hydrophilic Gun Grade WaterstopClick on Image to Expand  VIEW PRODUCT BROCHUREThe LEAKMASTER LV-Z Hydrophilic Gun Grade Waterstop is a one component polyurethane water-swelling (hydrophilic waterstop) sealant with excellent and unique physical properties. It is a hydrophilic (water-loving) gun-grade material that expands in the presence of water, creating a watertight seal in...

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