ARDEX X 4™ is a polymer modified mortar for setting most types of tile including mosaics and natural stone* over common interior surfaces including exterior grade plywood, as well as over exterior concrete and masonry surfaces. ARDEX X 4 mortar can be used to set porcelain tiles on horizontal exterior concrete or masonry surfaces.

Key Features

• Ideal for large format tile and stone
• Use for setting porcelain, quarry, ceramic and most natural stone (moisture insensitive) tiles
• Use above and below uncoupling membranes
• Easy to mix and apply
• 3-hour pot life
• Interior or exterior use; water and frost resistant

Installation

Mixing Ratio:

5 – 5 1/2 quarts (4.7 – 5.2 L) of water per 40 lb. (18 kg) bag

*For smaller batches, use 2.75 parts powder to 1 part water by volume

Approximate Coverage per 40 lb. (18 kg) bag:

1/4” x 1/4” Sq. Notch Trowel; 80 sq. ft. (7.4 sq. m)

1/4” x 3/8” x 1/4” Sq. Notch Trowel; 60 sq. ft. (5.5 sq. m)

1/2” x 1/2” Sq. Notch Trowel; 40 sq. ft. (3.7 sq. m)

Performance

Open Time: Up to 10 – 15 minutes
Pot Life: Approx. 3 hours
Working Time: Approx. 15 – 20 minutes
Time to Grout: Walls: 8 hours
Floors: 24 hours
Colors: Gray, White
VOC: 0
Packaging: 40 lb. (18 kg) bag
Storage: Store in a cool, dry area. Do not leave bags exposed to sun.
Shelf Life: 1 year, if unopened