MasterSeal 591 (Formerly: Waterplug), 

is a high adherence, special cement and mineral filler containing, ready to use repair mortar that instantly sets and hardens by expanding when mixed with water and is used for stopping of active water leakages.

Complies with EN 1504-3 Class R2

MasterSeal 591 Fields of Application

• Interior and exterior areas for vertical and horizontal applications.
• Repairs of static (non-moving) cracks.
• Stopping of active water leakages.
• Waterproofing of pipe and cable crossings.

MasterSeal 591 Features and Benefits

• Single component, only mixed with water.
• Stops active water leakages by setting instantly.
• Easy to use.
• Expands and forms a watertight structure.