4 to 1 is a preblended mixture of finely graded sand and Portland cement used for thick-bed mortar installations. 4 to 1 flattens and levels an existing substrate before the installation of tile and stone.
Screed and level from 3/8" to 3" (10 mm to 7.5 cm)
Ideal for floating shower bases
Mix with water orPlanicrete®AC
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