ARDEX 8+9™ Rapid Waterproofing & Crack Isolation Compound (White)

ARDEX 8+9™ Rapid Waterproofing and Crack Isolation Compound (White)

SKU: ARDEX-8+9 Category: Tag:


ARDEX 8+9™ Rapid Waterproofing and Crack Isolation Compound is a best-in-class, two-component, solvent-free, cement-based membrane. Comprised of an acrylic-based liquid compound and a Portland and other hydraulic cement-based powder, ARDEX 8+9 can be applied easily with a paint roller or a brush to produce a highly flexible, waterproof coating. This coating protects from topside water infiltration and provides an excellent bonding layer for ARDEX tile and stone mortars. When properly installed, ARDEX 8+9 reduces the risk of efflorescence and is IAPMO certified for use as a shower pan.

Key Features

  • Rapid setting – tile in as little as 90 minutes
  • Flood test in 4 hours
  • Crack isolation up to 1/8″ (3 mm)
  • Excellent coverage – up to 300 sq. ft. for commercial unit and up to 100 sq. ft. for convenient kit
  • Ideal for applications in commercial and residential bathrooms, showers and kitchens prior to the installation of tile and stone
  • For use in swimming pools*
  • Use for interior or exterior floors and walls
  • Easy to apply with a roller
  • A solvent-free blend of Portland cement and other hydraulic cements for the ultimate bond with ARDEX tile and stone mortars
  • Helps to prevent efflorescence from the substrate
  • Can be used in place of a shower pan liner


Meets or exceeds ANSI A118.10
Meets or exceeds ANSI A118.12

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Shipping & Delivery

Free shipping is ground shipping only within the continental 48 U.S. States. It is only available on riders over $1000 or more. >

Dates are subject to availability and are not guaranteed. It is strongly recommended your request date be three business days prior to needing delivery.