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ARDEX X 4™ LFT - Large Format Tile and Stone Mortar - 64 Piece Pallet

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by Ardex
Original price $1,645.80 - Original price $1,828.20
Original price
$1,645.80 - $1,828.20
Current price $1,645.80
Freight Delivery Information


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  • On-Site Amenities: Forklift or loading dock is essential.

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ARDEX X 4™LFT - Large Format Tile and Stone Mortar, 64 X 40lb Bag Pallet

Upgrade your tiling projects with ARDEX X 4™ LFT, the versatile and robust mortar designed for both large format tiles and natural stones.


  • Large Format Tile Specialization: Tailored for setting large tiles and stone.
  • Versatile Tile Compatibility: Suitable for porcelain, quarry, ceramic, and most natural stones.
  • Membrane Friendly: Can be used both above and below uncoupling membranes.
  • Ease of Use: Simple to mix and apply, enhancing work efficiency.
  • Extended Working Time: Offers a 3-hour pot life for flexibility.
  • Indoor and Outdoor Application: Ideal for both interior and exterior settings.
  • Durability: Water and frost resistant for long-lasting installations.
  • Bulk Availability: Comes in a 64 x 40lb bag pallet for large projects.
  • Plywood and Masonry Compatible: Can be applied over exterior-grade plywood and masonry surfaces.
  • Exterior Porcelain Tile Setting: Effective for horizontal exterior concrete or masonry surfaces.


  • SystemOne™
  • Meets or exceeds ANSI 118.4
  • Meets or exceeds ANSI 118.11
  • ISO Classification: C2TE


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)


  • 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
  • Warranty: ARDEX L.P. Standard Limited Warranty applies. Also eligible for the ARDEX Tile and Stone Installation Systems SystemOne™ Warranty.


More Details

ARDEX X 4™ LFT Mortar is a top-of-the-line choice for professionals tackling large format tile and stone installations. This polymer-modified mortar is specifically designed to address the unique challenges of setting large tiles, ensuring a strong and durable bond. Whether working with porcelain, quarry, ceramic, or a variety of natural stone tiles, ARDEX X 4™ delivers exceptional versatility. Its formulation allows for use above and below uncoupling membranes, providing added flexibility in application. The mortar's easy mixing and application process makes it a go-to choice for both novice and experienced tilers, saving time and labor. With a 3-hour pot life, it offers ample working time, ensuring a stress-free application. The ARDEX X 4™ is equally effective for both interior and exterior projects, boasting water and frost resistance which guarantees longevity in diverse environmental conditions. Its compatibility with exterior-grade plywood and masonry surfaces makes it ideal for a wide range of installation scenarios, including setting porcelain tiles on horizontal exterior concrete or masonry surfaces. Available in a 64 x 40lb bag pallet, this mortar is perfect for large-scale projects, providing consistent quality and performance that professionals can rely on.

What's Included
  • 64 Piece Pallet

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