Bostik Flex-A-Lastic acrylic mortar admixture can be used in vertical applications due to its high bond flexural strength.

    Key Features

    • Provides high bond strengths and flexibility
    • Meets or exceeds ANSI 118.4 and ANSI 118.11 when mixed with Tile Mate® Thin Set Mortars
    • Extremely tacky consistency–excellent for porcelain tiles

    Flexible, High Solids, Acrylic Mortar Admixture

    Bostik Flex-A-Lastic® is a premium grade, high solids acrylic mortar admixture. When mixed with Bostik Tile-Mate® Thin Set Mortars, it becomes a flexible, high strength, freeze/thaw resistant mortar system for setting many types of tiles in interior and exterior settings. 

    Where to Use

    • Interior and exterior floors
    • Interior and exterior walls
    • Interior and exterior countertops


    • Plywood
    • Vinyl
    • VCT flooring
    • Cutback
    • Ceramic


    • Ceramic
    • Porcelain
    • Marble
    • Granite
    • Large dimensional stone

    back to top