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    3 Products
    About Sealants
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    Select a sealant that can stretch, contract, and expand enough for your joints.

    Backer Rods

    Image of ProductInUse. Front orientation. Backer Rods.
    Image of Product. Front orientation. Backer Rods.
    Image of Attribute. Front orientation. Contains Annotated, Border.
    Provide support for sealants in gaps—insert these backer rods into gaps and fill in with sealant.
    Open-Cell Foam—Open-cell backer rods are the most compressible and maintain their shape better than open/closed ones. They allow moisture to be absorbed. Although they withstand environments up to 500° F, they shouldn’t be used with hot-pour sealants, which can seep through the large cell size and damage the underlying surface.
    For Max.
    Joint Wd.
    Dia.
    Lg.,
    yd.
    Min. Temp.,
    ° F
    Max. Temp.,
    ° F
    Color
    Each
    Open-Cell Polyethylene Foam
    1/2"5/8"167-45500Yellow77605T515000000
    11/16"7/8"117-45500Yellow77605T516000000
    7/8"1 1/8"100-45500Yellow77605T517000000
     
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