FlexBond®-LFT Premium Crack Prevention Large Format Tile Mortar

Product ID: TDS-153

Polymer modified, medium bed mortar for use with large format tiles over difficult to bond substrates and tiles. Exceptional flexibility and bond strength ideal for non porous tile over plywood, vinyl and laminates. Provides protection and isolation against cracks in the substrate up to 1/16″.
Available in Canada Only

  • High flexibility to prevent cracks in tile
  • Supports large and heavy tile for flat, even floor installations
  • Sag and slip resistant – immediately holds wall tiles in place
  • Exceeds ANSI A118.15 and A118.11

Coverage Chart


Trowel Size Min Coverage Max Coverage
Longest side of tile 8" to 15" use 1/4" x 3/8" x 1/4" (6 x 9.5 x 6 mm) Square-Notch 63 ft² (5.9 M²) 70 ft² (6.5 M²)
Longest side of tile more than 15"+ use 1/2" x 1/2" x 1/2" (13 x 13 x 13 mm) Square-Notch 45 ft² (4.2 M²) 50 ft² (4.6 M²)
Longest side of tile more than 15"+ use 3/4" x 9/16" x 3/8" (19 x 14 x 9.5 mm) U-Notch 36 ft² (3.3 M²) 40 ft² (3.7 M²)

Recommended minimum coverage (80% for dry areas and 95% for wet areas and exteriors). Back buttering may be necessary.

Note that mortar coverage does not include backbuttering tiles. When backbuttering, consider the tile underside pattern and depth to estimate thickness and usage to add to your estimate.

Chart for estimating purposes. Coverage may vary based on installation practices and jobsite conditions. For more sizes, use the material calculator at CustomBuildingProducts.com or contact CUSTOM Technical Services at 800-282-8786.

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