Ardex 8+9 - Roll on Waterproofing and Crack Isolation Membrane


Ardex 8+9 can act as both a waterproofing and crack isolation membrane. Ardex 8+9 is a two-part roll on membrane that can be applied with a trowel or paint roller. This membrane is ideal for use in tile showers, tile floors, and more!


  • Portland cement-based two-part substrate waterproofing material in accordance with ANSI A118.10, IAPMO approved
  • Waterproofs all common substrates in residential and commercial bathrooms, showers, and kitchens prior to the installation of tile
  • Receives all types of tile
  • Use for interior or exterior floors and walls
  • Two-coat system - roller applied
  • Rapid setting - tile in 2 hours
  • Flood test in 4 hours!
  • Solvent free
  • Non-bituminous - not an epoxy
  • Coverage - 100 sq ft (2 coats) over drywall per combined unit. 70 sq ft (2 coats) over concrete per combined unit.

Use the Ardex SK mesh tape with the Ardex 8+9 for crack isolation, and for shower waterproofing applications.

Ardex 8+9 Technical Data

Ardex 8+9 MSDS

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