Flextille 55LHT Large Heavy Tile Mortar
55LHT Large Heavy Tile Mortar is a Polymer Modified Large Heavy Tile (LHT) Mortar, designed specifically for both thin or medium-bed wall, floor installation of large format tile and stone. 55LHT Large Heavy Tile Mortar provides excellent sag resistance and mortar transfer to backs of larger format tile & stone on vertical applications, as well as superior tile support and mortar transfer on horizontal applications. A formula which includes high-performance polymers and water retention additives, carefully graded sands, Portland cement, and special non-sag additives contributes to the unique characteristics of 55LHT Large Heavy Tile Mortar. Available in Gray & White.
Product families
- Ceiling Tiles
- Other Flooring & Surface Applications
Other characteristics
- Features
Excellent Strength, Improved Adhesion; Excellent for non-sag, thin or medium bed installations of large dimension,heavy tile and stone on both vertical or horizontal surfaces.; Excellent movement capability and bond strength.; Contributes to LEED certifi cation.; For interior and exterior fl oor and wall installations.; Easy to use - just mix with water and apply.; Promotes better mortar transfer to backs of large format or heavily lugged tile, ensuring adequate coverage – ideal for use with mechanical tile-leveling systems.; Supports large format tile, reducing lippage.; Excellent workability.; Rated as suitable for Extra Heavy Service by ASTM C627-70 on concrete substrates.; Rated as a light performance commercial and residential mortar by ASTM C627-70 on plywood substrates.
- Product Type
- Mortar
- Application Area
- Masonry
- Application Method
- Trowel
- Caution
Freshly mixed cement, mortar, concrete or grout may cause skin injury. Avoid extended contact with skin where possible and wash exposed skin areas immediately promptly with water. If any cement or cement mixtures get into the eye, rinse immediately and repeatedly with water and get prompt medical attention. Keep out of reach of children.
- Markets
- Building & Construction
- Basic Uses
Installation of large format porcelain, ceramic, mosaic, quarry and paver tiles, or natural stone such as marble, granite, slate and precast terrazzo tile on horizontal surfaces where superior mortar transfer to backs of tile and support for large, heavy tile is required.
- Shelf LIfe
- 1 Year
- Cure
- Air Dry
- Limitations
Do not use over particleboard, Masonite, chipboard, OSB or similar unstable materials.; Do not use over cushioned resilient fl ooring, rubber, plastic, paint, asphalt, or plywood surfaces in wet areas.; Do not use directly over single layer plywood floors.; Use only on surfaces which are maintained at a temperature above 10°C (50°F) and below 35°C (95°F) during application and for at least 72 hours after application.; On exterior applications, protect from rain until thoroughly dried and protect from freezing for at least 14 days after installation.; When installing light-colored stones and translucent marble use Flextile 55LHT White.; To use directly over gypsum-based patching or leveling substrates, apply suitable primer before use.; Installations over nonporous surfaces may require extended setting/curing times.; Consult local building code requirements for use on exterior commercial building facades.; For heavy service exterior or water immersion applications, or where extreme freeze/thaw conditions are present, use Flextile 5400 Maxi-Flex or Flextile 51/44 or Flextile 58XT Fast Set high solids, two-component latex Portland cement mortar systems.; Do not use for moisture-sensitive stone such as green marble, certain limestone and granite, agglomerate tiles, cultured marble or resin-backed tiles. Instead, use FlexEpoxy 100 mortar.
- Maintenance
No maintenance is required except where damages result from unforeseen circumstances.
Technical data
Table 1 of 1
9 rows| Characteristic | Value | Unit |
|---|---|---|
| Approx. Coverage (Per 22.7 Kg Bag, 10 mm x 10 mm (3/8" x 3/8”) - square-notch trowel) | 4.1 | m² |
| Approx. Coverage (Per 22.7 Kg Bag, 19 mm x 14 mm (3/4” x 9/16”) - round-notch trowel) | 2.8 | m² |
| Approx. Coverage (Per 22.7 Kg Bag, 6 mm x 10 mm (1/4” x 3/8”) - square-notch trowel) | 5.5 | m² |
| Cleanability | With water before material dries | — |
| Final Cure | 21.0 | Days |
| Initial Cure | 24 - 48 | Hours |
| Open Time | 20.0 | Minutes |
| Pot Life | 2.0 | Hours |
| VOCs | 0.0 | g/l |
