Acrylic Tub on wood subfloor and Mortar bed

Discussion in 'Shower & Bathtub Forum & Blog' started by bennybaby, Nov 19, 2005.

  1. bennybaby

    bennybaby New Member

    Nov 19, 2005
    Langhorne, PA
    I have a 50 pound bag of structolite,( a gypsum and perlite mix) as recommended by my supply house. I intend to lay a mortar bed under my new Acrylic Whirlpool tub. It is a Kohler tub, the installation directions for the tub specifically say
    . I could venture to say Kohler is referring to wall spackling/patching compound, and are not ruling out all gypsum based products.

    After researching structolite, it seems that it is a common practice to apply this stuff as a tub bed. My supplier says that they even get it under the feet of the tub, and rest the pump motor in the stuff. Of course, the dummies at Kohler do not advise on what to use.
    Is structolite the best option??? Or is there a better material???
  2. sulconst2

    sulconst2 New Member

    Jul 11, 2005
    old bridge nj
    its what i use. easy to work. stays stiff. doesnt sag when mixed thick. i believe the bag says its a setting compound.
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