Ardex 8+9 Rapid Waterproofing and Crack Isolation Compound Convenient Kit Ardex's 8+9 two-component waterproofing and crack isolation compound is the best-in-class roll-on membrane for use on all common substrates before tile and stone installation. This cement-based product is straightforward to use and provides an outstanding bond to mortars.
Features- Convenient kit includes: ARDEX 8 (liquid): 1 gallon (3.78 liters) bottle and ARDEX 9 (powder): 9 lb. (4 kg) bag
- Available in gray and white
- Ideal for use in showers, kitchens, and exterior manufactured veneer stone installations
- For commercial and residential applications before tile and stone installation
- Tile installation in just 90 minutes
- Flood test in only 4 hours
- 1/3 the cost per square foot vs. competitive products
- 25 warranty on a two-coat application every time
- IAPMO Certified, ANSI A 118.10
Application Guide- Ensure that you have the appropriate tools and a sufficient amount of ARDEX 8+9™ Rapid Waterproofing and Crack Isolation Compound
Coverage (2 coats)- Drywall – 100 sq.ft
- Concrete – 70 sq.ft
- ARDEX 8+9 requires a solid substrate that is clean, dry, and free of oils, grease, wax, latex compounds, curing compounds, dust, and all foreign matter. Do not install below 50°F (10°C) surface temperature
- MIX 1 – Caulking Consistency - Mix a small amount of ARDEX 8+9™ to a lump-free caulk-like consistency for filling holes, gaps, and joints. Always pour liquid into the mixing container first and then the powder. Working time is approximately 45 minutes at 70°F/21°C.
- Crack Isolation - Use MIX 1 to fill around floor or wall penetrations, corner and floor/wall joints, and dormant cracks up 1/8” before installing ARDEX SK MESH™. The unused portion of the trowel grade MIX 1 the mixture can be blended back with the balance of the remaining powder and liquid for use in the next step, MIX 2
- MIX 2 – Paint-able Consistency - Mix ARDEX 9 (powder) with one unit of ARDEX 8 (liquid). Mix with an ARDEX T-2 Ring Paddle and a low-speed drill for best results. Always pour liquid into the mixing container first and then the powder. Mix thoroughly to obtain a lump-free, pour-able mixture. Coat the entire area evenly with a paint roller or brush and allow thorough drying (30 to 45 minutes). A second layer is required to obtain a waterproof membrane and must be applied at a 90° angle to the first coat
- Tiles can be fixed onto the second coat of ARDEX 8+9™ after one hour at 70°F/21°C. Use ARDEX MICROTEC™ Thin Set Mortars ARDEX X 77™ and ARDEX X 32™( for stone), ARDEX X 5™ or ARDEX X 4™ directly onto ARDEX 8+9™, all of which are suitable for porcelain, non-porous, and glass mosaic tiles. ARDEX X 4 is suitable for tiles for internal applications only
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