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Ardex 8+9 Rapid Waterproofing & Crack Isolation Compound

Ardex 8+9 Rapid Waterproofing & Crack Isolation Compound

by Ardex
SKU 16003
$108.39 - $114.81
$108.39
$108.39 - $114.81
$108.39
Color: Gray

ARDEX 8+9 is the go-to waterproofing and crack isolation system for tile professionals who need speed without compromise. This two-component system rolls on fast, dries in minutes, and delivers full waterproof and vapor-retardant protection in under two hours. When time matters and failure isn’t an option—8+9 delivers.

More Details

Get watertight coverage and a confident bond in record time. ARDEX 8+9 is a flexible, two-part waterproofing and crack isolation membrane that forms a durable film over substrates before tile installation. Ideal for showers, bathrooms, balconies, and wet areas, it stops water intrusion and isolates cracks up to ¹⁄₈" (3 mm).

Features & Specifications:

  • Type: Two-component (liquid + powder) waterproofing and crack isolation system
  • Coverage: ≈ 75 sq ft (7 m²) per unit at two coats
  • Dry Time: Ready to tile in 90 minutes (at 73 °F / 23 °C)
  • Crack Isolation: Up to ¹⁄₈ in (3 mm)
  • Use Areas: Interior/exterior, floors, walls, and submerged areas
  • Compatibility: For use under tile, stone, and most thinset mortars
  • Color: Gray when mixed – dries to a dark, uniform film

System Accessories:

Docs
  1. ARDEX-89-Product-Overview.pdf (Download)
  2. ARDEX-89-Technical-Data.pdf (Download)
  3. ARDEX-89-Safety-Data-Sheet-Liquid-1.pdf (Download)
  4. ARDEX-89-Safety-Data-Sheet-Powder-Gray-1.pdf (Download)
Standards

SystemOne™
Greenline
Meets or exceeds ANSI A118.10
Meets or exceeds ANSI A118.12

Shipping & Return Policies

Shipping Policy

Refund & Return Policy

Ardex 8+9 Rapid Waterproofing & Crack Isolation Compound - Designed for Wet Areas Where Failure Isn’t an Option

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.

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
  • Available in Gray or White
  • 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 or paint brush
  • 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