CS Hygrometer box readings

Discussion in 'Subfloor Preparation' started by Mwfloor, Nov 29, 2019.

  1. Mwfloor

    Mwfloor Well-Known Member

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    I put a Fball Hygrometer on a Calcium Sulphate screed last night (it’s already been diamond grinded by myself a couple of weeks ago)

    My question is should I take a reading tonight after 24hrs or is it pointless? Or should I just wait for 72 hours? And then take reading..




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    Mwfloor, Nov 29, 2019
    #1
  2. tarkett85

    tarkett85 Well-Known Member

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    Minimum 72 hours as per instructions


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    tarkett85, Nov 29, 2019
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  3. merit

    merit Well-Known Member

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    It’s all pointless as you can’t get a true reading on anhydride with a hygrometer


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    merit, Nov 29, 2019
    #3
  4. merit

    merit Well-Known Member

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    Only carbide bomb test according to manufacturers


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    merit, Nov 29, 2019
    #4
  5. Neilydun

    Neilydun Well-Known Member

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    I recently spoke to a tech from F-Ball who now accept the hygrometer readings on anhydrite.
    They also now recommend F77 below a certain %
     
    Neilydun, Nov 29, 2019
    #5
  6. merit

    merit Well-Known Member

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    That’s good of them. Fball are shocking tho. Some of the stuff their rep says is utter nonsense. As long as it’s in writing your covered I guess


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    merit, Nov 29, 2019
    #6
  7. Mwfloor

    Mwfloor Well-Known Member

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    Nice one Neil, good to know


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    Mwfloor, Nov 30, 2019
    #7

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