Versatile polymer modified mortar engineered for large and heavy tile, thin-bed, and wall installations. Its smooth, non-sag, non-slump formula delivers excellent coverage, strong adhesion, and reliable performance on both floors and vertical surfaces.
Brand: Laticrete
Availability: Sold In Store - Ships From Store (More Info)
Shipping: Standard (More Info)
Laticrete Sure Set LHT Large Tile Mortar is a high-performance, polymer modified adhesive designed to simplify modern tile installations. Engineered as a versatile, multi-purpose mortar, it supports large and heavy tile applications while also performing exceptionally well in thin-bed and vertical installations.
Its advanced non-sag and non-slump formulation ensures tiles remain securely positioned during installation, reducing adjustment time and improving overall accuracy. The smooth, creamy consistency allows for easy troweling and superior coverage, helping installers achieve consistent bond strength and professional results.
Capable of building up to 3/4" (19 mm) without slump, Sure Set LHT is ideal for leveling uneven surfaces and maintaining flat installations with large format tile. Designed for interior floor and wall applications across a wide range of substrates, it provides reliable performance for both residential and commercial projects.




Installation:
All surfaces should be between 40°F (4°C) and 90°F (32°C) and structurally sound, clean and free of all dirt, oil, grease, paint, concrete sealers or curing compounds. Rough or uneven concrete surfaces should be made smooth with Latex Cement Underlayment to provide a wood float (or better) finish. Dry, dusty concrete slabs or masonry should be dampened and excess water swept off.
Mixing:
Place clean, potable water into a clean pail. For walls and Large Heavy Tile applications: Use approximately 4.1-4.3 quarts (3.9-4.1 L) of water for 44 lbs (20 kg) of powder. For Thin Bed applications: Use approximately 4.8-5.0 quarts (4.5-4.7 L) of water for 44 lbs (20kg) of powder. Slowly add Sure Set LHT Mortar. Mix with a mixer to a smooth, trowelable consistency. Allow mortar to slake for 5 minutes. Remix without adding any more water or powder. During use, stir occasionally to keep mix fluffy. DO NOT temper with water.
Approximate Coverage:
| Notched Trowel Size | ft² | m² |
| 1/4" x 1/4" (6 mm x 6 mm) notched trowel | 70 – 86 | 6.5 – 8.0 |
| 1/4" x 3/8" (6 mm x 9 mm) notched trowel | 53 – 62 | 4.9 – 5.8 |
| 1/2" x 1/2" (12 mm x 12 mm) notched trowel | 35 – 43 | 3.3 – 4.0 |
Performance:
| SKU | L-SURE SET LHT |
|---|---|
| Weight (lbs.) | 44.00 |
| Non-Returnable | No |
| Manufacturer | Laticrete |