Product Description

Siena LFT, LHT M400 is a professional polymer-modified mortar manufactured with a mixture of portland cement, graded aggregates and other proprietary additives to produce a high quality mortar for walls and ceilings, with high bond strength, sag resistance, greater open time and coverage than standard mortars. Siena LFT, LHT M400 is available in either white or grey color and complies with the requirements of ANSI A118.4 and A118.11.


Siena LFT, LHT M400 is specially formulated with sag resistance properties for the installation of most tiles and stones without the need of leveling the receiving substrate. Siena LFT, LHT M400 can be used as a setting bed up to 3/4” thick on floors and walls in residential and commercial projects.

Product Data Sheet | SDS