225 Sq. Ft. Peel and Stick Crack Isolation 40-Mil Underlayment
Proflex SIM 40 is designed for full coverage crack suppression. PROFLEX SIM 40 is specially designed to be used under approved thinsets, mortars, and adhesives for interior and exterior applications of ceramic tile, stone, and brick, and for interior applications of wood flooring to eliminate the transmission of cracks through finish flooring.