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Discussion in 'Lime Plastering Case Studies' started by James Eccleston, Jul 11, 2017.

  1. James Eccleston

    James Eccleston New Member


    Could anyone help me identify what this material is that I found in some plaster around a chimney breast? I've attached an image of a piece of plaster I removed. Hopefully you can see it in the photo, there's small (maybe 1mm wide) shiny crystal like bits in the plaster. Does anyone know what this is?

    Any advice would be really appreciated.



    Attached Files:

  2. Topspread16

    Topspread16 Well-Known Member

    I think it's crack

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  3. TonyM

    TonyM Private Member

    Is it 1/14th of Stonehenge?

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  4. Danny

    Danny TPF OWNER

    • Agree Agree x 1
  5. Topspread16

    Topspread16 Well-Known Member

    It is danny, vermiculite a bulking aggregate with thermal qualities.

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    • Agree Agree x 2
    • Like Like x 1
  6. stokeplasterer

    stokeplasterer Active Member

    I agree with Danny and topspread
    • Agree Agree x 1
  7. bobski

    bobski Active Member

    Yep, vermiculite, or if you put it in yourself 'micafil', also used as loose insulation. The annoying shite in lofts.
    • Like Like x 1
    • Agree Agree x 1
  8. seanlar

    seanlar Member

    It's just sand and lime
  9. Have you ruled out the possibilty of salt crystallization has there been and previous damp problems?
    • Funny Funny x 1
  10. irish_spread

    irish_spread Private Member

  11. choppa

    choppa Active Member

    Why do you need to no so badly?
  12. irish_spread

    irish_spread Private Member

    Or salt crystalization maybe ?
    • Agree Agree x 1

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