Lightweight, rapid-setting polymer modified thin-set mortar designed for large format tile and high-performance installations. Its smooth, non-sanded formula delivers superior non-sag performance, high bond strength, and fast grouting in just 3–4 hours.
Brand: Laticrete
Availability: On order. This item will ship when back in stock (More Info)
Shipping: Standard (More Info)
Laticrete Tri-Lite Rapid Thin-Set Mortar is a highly versatile, fast-setting lightweight adhesive engineered for demanding large format tile and thin-set installations. Designed for both interior and exterior use, it delivers superior bond strength, exceptional non-sag performance, and rapid curing to keep projects moving efficiently.
The lightweight, non-sanded formula provides a smooth creamy consistency that is easy to mix, spread, and control—helping installers achieve professional results with less effort. With rapid-setting performance that allows grouting in as little as 3–4 hours, it is an ideal solution for time-sensitive residential and commercial projects.
Suitable for walls, floors, and large and heavy tile applications, Tri-Lite Rapid offers dependable strength, versatility, and productivity-enhancing performance across a wide range of substrates and installation conditions.




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 a Laticrete latex fortified underlayment or leveling mortar to provide a proper finish. Dry, dusty concrete slabs or masonry should be dampened and excess water swept off. Installation may be made on a damp surface. New concrete slabs shall be damp cured and 28 days old before application. All slabs must be plumb and true to within 1/4" (6 mm) in 10' (3 m). Expansion joints shall be provided through the tile work from all construction or expansion joints in the substrate. Do not cover expansion joints with mortar.
Approximate Coverage:
| Trowel Size | ft2 | m2 |
| 1/4" x 1/4" (6 mm x 6 mm) notched trowel | 80 – 95 | 7.4 – 8.8 |
| 1/4" x 3/8" (6 mm x 9 mm) notched trowel | 60 – 70 | 5.6 – 6.5 |
| 1/2" x 1/2" (12 mm x 12 mm) notched trowel | 40 – 47 | 3.7 – 4.4 |
Performance:
| SKU | L-279 RAPID |
|---|---|
| In the Box |
|
| Weight (lbs.) | 27.5 |
| Non-Returnable | No |
| Manufacturer | Laticrete |
| Manufacturer Part Number | 0279-0275-22-1 |