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Technical Data
Key #780-M Epoxy Membrane
KEY #780 JOINT FILLER/MEMBRANE is a 100% solids flexible epoxy used as a joint filler to protect contraction joints (saw cuts) in concrete slabs or as a crack isolation membrane for interior use under various Key Resin Flooring Systems. KEY #780 absorbs the impact and shock of heavy loads and steel wheeled traffic, preventing erosion of control joint edges. KEY #780 resists cracking caused by horizontal movement or vibration and is used to treat the surface of individual cracks and properly filled and covered contraction joints (saw cuts). KEY #780 is available in Regular Cure (RC), Fast Cure (FC), and Super Fast Cure (SFC) formulations.