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All Systems > Elastomeric Flooring Systems > Key Waterproofing & Crack Isolation Membranes > Key #9800 Flexible PUMMA Membrane  
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Key #9800 Flexible PUMMA Membrane


KEY #9800 Flexible PUMMA is a higher viscosity, 100% reactive, flexible methyl methacrylate polyurethane hybrid resin used as a crack isolation or waterproofing membrane under various Key MMA Systems, or as a resilient mortar or joint filler for numerous applications. Key #9800 Flexible PUMMA resists cracking caused by horizontal substrate movement, providing a crack resistant, resilient surface with superior performance in cold temperature environments. Key #9800 Flexible PUMMA offers stress relieving properties for floor slabs showing movement and/or vibration. Excellent for use as an intermediate membrane layer or patching mortar in loading docks and ramps, equipment rooms, large animal rooms, activity rooms, automotive and tooling industry, freezers, coolers, bridge decks, roof decks, pedestrian walkways, parking garages, ship decks, pool liners, pool decks, joint repair, food industry, dairies, beverage industry, and numerous other industries and applications.



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Key #9800 Flexible PUMMA Membrane Data Sheet
(PDF, 89KB)