Siena Elasto Pro EP200 is an Elastomeric latex-modified mortar and crack suppressant membrane manufactured with a mixture of acrylic polymers, Portland cement, graded aggregates and other proprietary additives to produce a high quality mortar that does not require soaking of tiles for higher bond strength and flexibility. Siena Elasto Pro EP200 will span cracks of up to 1/8” (3.2 mm) and it is available in either white or gray color, and may be used in installations that must conform to ANSI A108.5, ANSI A118.12.