2.5 gallon, thin set mortar admix, pre-mixed, no diluting necessary, a liquid polymer designed to be used in place of water to increase performance of cement mortar beds, non-modified, thin set mortars & cement based grouts, improves working characteristics & performance of cement based mixes to boost water resistance, shock resistance & freeze thaw capabilities for tile, stone or masonry installations, increases performance of non-modified thin set mortars for setting dense tile & setting over hard to bond surfaces. It Is Easy To Use It Is Highly Durable Manufactured In United States Brand Name: Custom Bldg Products