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    BENSEAL® granular (8-mesh), natural Wyoming sodium bentonite is used in the sealing and grouting of well casings and earthen structures. BENSEAL® is not recommended for use as a drilling mud.


    Seal or grout plastic or steel casings in monitor and water well construction. Seal or plug abandoned boreholes. Seal leaking ponds, ditches and dams. Soil stabilization. Aid in controlling loss of circulation.


    NSF/ANSI Standard 60 certified. High swelling capacity. Prevents commingling of aquifers and contamination from surface.

    Recommended Treatment

    As a casing drill and drive operation:

    1. Dig a cone-shaped depression around casing. Depression should be 6”- 8” (152 – 203 mm) larger than the outside diameter of the casing and 2’- 3’ (60 – 75 cm) deep.
    2. Keep cone-shaped depression filled with dry BENSEAL® while driving the casing.

    When drilling and driving a 4” (102 mm) pipe, expect to use 2.5 lbs. of BENSEAL® sealing and plugging agent per foot of hole or 3.7 kg/meter of hole.

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