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.
Toll-free within Canada:
Technical Services at 1-800-361-9309
Customer Service at 1-800-426-2734
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2900, avenue Francis-Hughes, Laval (Québec) H7L 3J5