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Cement board underlayment is a rigid substrate made of Portland cement, aggregate and glass mesh that provides an exceptionally hard, durable surface that is able to withstand prolonged exposure to...
Cement board underlayment is a rigid substrate made of Portland cement, aggregate and glass mesh that provides an exceptionally hard, durable surface that is able to withstand prolonged exposure to moisture."PERMABASE"3' W x 5' LThickness In=1/4INTERIOR/EXTERIORULTRABACKERUnit: EA