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ARDEX UI 740 Flexbone

Uncoupling Membrane


ARDEX UI 740 FLEXBONE Uncoupling Membrane is a high load-bearing bonded uncoupling membrane ideal for large format tiles in high traffic areas. The unique bone shaped pattern with GripLock Technology delivers outstanding tensile bond strength. The system helps neutralise underlying substrate movement and supports and distributes heavy loads from above. ARDEX UI 740 FLEXBONE can be used as a waterproof layer in bathrooms and wet areas. For internal applications only.


  • Substrates:

    • Concrete substrates
    • Screeds (icl. green screeds)
    • Timber subfloors
    • Vinyl floor coverings
    • Existing and cracked tiles
    • Fresh, slightly damp concrete

  • Coverage:
  • Roll size:

    1 x 20m

  • Packaging:

    ARDEX UI 740 FLEXBONE is available in rolls of 1m wide x 20m long.