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Ardex UI 740 Flexbone Uncoupling Membrane

SKU 24252
by Ardex
Original price $336.34 - Original price $336.34
Original price
$336.34 - $336.34
Current price $336.34

Flexbone UI 720 Floating Uncoupling Membrane - Perfect for Porcelain, Ceramic, Quarry, and Natural Stone Tiles

The Flexbone UI 720 Uncoupling Membrane is a revolutionary, loose-laid floating system that provides 100% uncoupling for tile contractors and home remodelers. This membrane's separation from the underlying substrate results in significant time and cost savings through minimal required substrate preparation. With its unique bone-shaped pattern and GripLock Technology for the highest level of mortar-to-membrane bond strength, this membrane is perfect for use with porcelain, ceramic, quarry and natural stone tiles.


  • PRODUCT ENHANCEMENT: Now with added ventilation channels
  • Prefill with just one pass
  • High load-bearing uncoupling membrane
  • Ideal for large format tile and stone in heavy traffic areas
  • For use with porcelain, ceramic, quarry, and natural stone tiles
  • Helps prevent grout joint and tile damage from substrate movement
  • Higher shear and tensile bond strengths than comparable uncoupling membranes (independent tests at MPA Wiesbaden, Germany)
  • Suitable as a waterproofing membrane
  • For use in high-stress areas, such as shopping malls, airports, office buildings, hospitals, etc.
  • For use over wooden or concrete substrates
  • Can be prefilled with ARDEX Liquid BackerBoard® Self-Leveling Underlayment

Size and Coverage Available

1/8″ (3 mm) Uncoupling Mat – 39″ wide x 65.6′ long (1 m wide x 20 m long) roll
Coverage of 215 sq. ft. (20 sq. m) per roll

1/8” (3 mm) Uncoupling Mat – 39” wide x 16.4’ long (1 m wide x 5 m long) roll
Coverage of 54 sq. ft. (5 sq. m) per roll

Warranty: ARDEX L.P. Standard Limited Warranty applies.


Ask a Question
  • Which tile materials are compatible with the Ardex UI 720 Flexbone membrane?

    The Flexbone Floating Uncoupling Membrane is designed to work with porcelain, ceramic, quarry, and natural stone tiles.