735 Dustless Premium Flex Thinset - CS66E - 1
    • 735 Dustless Premium Flex Thinset - CS66E - 1

    735 Dustless Premium Flex Thinset


    735 Dustless Premium Flex Thinset


    Coverage 35sf-75sf (depends on trowel notch size, substrate and job conditions)



    Merkrete 735 Premium Flex is a Superior grade (EGP) Latex Portland Cement flexible multipurpose thin set mortar with superior features like flexibility, higher strengths, extended adjustability and open times. 735 Premium Flex is specifically formulated to install ceramic tile, porcelain tile, and natural stone, interior or exterior to a variety of substrates.



    735 Premium Flex can be used as a thin set mortar for ceramic tile and natural stone for both walls and floors in interior and exterior applications. It is recommended for use in the thin set installation method for absorptive, semi-vitreous and vitreous tile over properly prepared masonry, concrete, cement backer board, and existing ceramic tile. In interior dry areas, it is suitable for gypsum board and plywood substrates. In interior dry areas only, it can also be suitable for well bonded cutback adhesive and vinyl composition flooring, excluding cushioned backed. It is used as a thin set from 3/32” to 3/16” (2.4 to 4.8 mm) after the tiles have been properly beat in. 735 Premium Flex is suitable for both

    residential and commercial construction.



    • Freeze thaw stable

    • Interior and exterior

    • Bonds to most surfaces

    • Available in both gray and white colors. Exceeds ANSI A118.4 for latex portland cement mortar and A118.11 for EGP latex portland cement mortar


    Suitable Substrates

    • Brick masonry

    • Cement backer board1

    • Cement mortar beds

    • Cement plaster

    • Cement terrazzo

    • Ceramic tile and stone

    • Concrete

    • Concrete masonry

    • Cutback adhesive2

    • Exterior grade plywood3

    • Gypsum wallboard3

    • Post tension

    • Merkrete waterproofing/crack isolation membranes

    • Vinyl composition flooring2


    Data sheet

    Style Number
    50 lb bag