KEY #9332 Flexible MMA is a higher viscosity, 100% reactive, flexible methyl methacrylate resin used as a crack isolation or waterproofing membrane under various Key MMA Systems. Key #9332 MMA resists cracking caused by horizontal substrate movement, providing a crack resistant, resilient surface. Key #9332 MMA offers stress relieving properties for floor slabs showing movement and/or vibration. Excellent for use as an intermediate layer in loading docks and ramps, equipment rooms, large animal rooms, activity rooms, automotive and tooling industry, freezers, coolers, bridge decks, pedestrian walkways, parking garages, ship decks, joint repair, food industry, dairies, beverage industry, and numerous other applications.