Curious about the smell of plaster...

Discussion in 'Just Talk' started by Ansley2408, Sep 12, 2022.

  1. Ansley2408

    Ansley2408 Member

    This isn't really a serious question so didn't want to post it in the other forums but..

    I have an old built in wardrobe, recently took all the shelves out and stripped back the wallpaper, the design on some of the layers looks 50s esque.

    Repainted the original plaster with matt white, all of a sudden he whole room smells of damp plaster, like it's just been freshly plastered..

    Curious as to why?
  2. quasar9

    quasar9 Screwfix Select

    It’s a complex process of various organic and inorganic molecules being released by rewetting the plaster which had previously dried out plus wallpaper glues of various vintage, paper residue as well as other organic matter accumulated over time.

    much the same process as the smell one gets when parched ground get the first rainfall.
  3. Ansley2408

    Ansley2408 Member

    Thanks quasar! Makes sense and great analogy with the rain on parched ground
  4. chesterw

    chesterw Well-Known Member

    Or when OAP's get damp

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