Siena Medium Set Pro M400 is a polymer-modified mortar manufactured with a mixture of Portland cement, graded aggregates and other proprietary additives to produce a high quality mortar that does not require soaking of tiles to give higher bond strength, greater open time and coverage than standard medium bed mortars. Siena Medium Set Pro M400 is available in either white or gray color and complies with the requirements of ANSI A118.4 and A118.11.
Basic Uses
Siena Medium Set Pro M400 is specially formulated for the installation of non-vitreous large format tiles and stones without the need of leveling the receiving substrate. Siena Medium Set Pro M400 can be used for interior and exterior applications and on floors or walls in residential and commercial projects. On floors it can be used as a setting bed up to ¾” thick.