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Skip Navigation LinksEN Home > Products > Tile & Stone Installation Systems  > ARDEX UI 720™ FLEXBONE®


​​Floating Uncoupling Membrane​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​

​ARDEX UI 720™ FLEXBONE® Floating Uncoupling Membrane is a revolutionary, loose-laid floating system that provides 100% uncoupling.  The membrane's separation from the underlying substrate results in significant time and cost savings through minimal required substrate preparation. ARDEX UI 720 FLEXBONE has a unique bone-shaped pattern with GripLock Technology for the highest level of mortar-to-membrane bond strength.  The membrane is constructed of a highly durable, flexible plastic and a laminated, topside glass fiber mesh that contains self-sticking overlaps for easy seam connection.  The membrane also contains more than 1,000 perforations per square foot for improved vapor pressure equalization.
  • True 100% uncoupling
  • Use with porcelain, ceramic, quarry and natural stone tiles
  • Up to 50% time savings
  • Helps prevent grout joint and tile damage
  • Vapor pressure equalization
  • Perfect for use over difficult substrates
  • Ideal for frequently-changed floor coverings
  • Now Available in Sheets!
​Sizes and Coverages Available 
1/8" (3 mm) Uncoupling Mat

39" wide x 65.6' long
(1 m x 20 m long)
Coverage: 215 ft2 (20 m2)

Individual Sheet
39" wide x 79.75" long
(1 m x 2 m long)
Coverage: 21.5 ft2 (2 m2)

ARDEX UD 146™ Edge Insulation Strip
ARDEX UD 156™ Movement Joint Tape
ARDEX UD 158™ Seam Reinforcement Mesh Strip

ARDEX UI 720 Brochure


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