Removing excess mastic

Discussion in 'Tech/Mech General' started by timdownieuk, Apr 23, 2013.

  1. timdownieuk

    timdownieuk Funster

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    I was renewing the mastic around my fridge vents yesterday using Sikaflex. Is there anything that I can use to dissolve excess smears of this mastic? It seems resistant to most solvents I've tried.

    Tim
     
  2. 163phil

    163phil Read Only Funster

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    It is! - Once it cures it's polymerised and will not dissolve. A sharp knife and care is your best bet.
     
  3. joner8888

    joner8888 Read Only Funster

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    A plastic scraper dipped in white spirit moves it.
    Thinners will remove smears--check that the paint is original first as thinners may attack after painted areas.
     
  4. mentaliss

    mentaliss

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    I use Tec7 spray adhesive remover, true if the silicone has hardened its more difficult but as said here already a piece of plastic with a 'edge' helps
     
  5. haganap

    haganap Funster Life Member

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    probably a bit late now but might help other readers. when you over use it, wd40 is ace at removing it. Haven't tried it on dried mastick though.
     
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  6. mitzimad

    mitzimad Funster

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    you can get silicon remover but its messy and could attack paint
    when applying mastic invest in some big wipes from most building supplies outlets these remove un skinned mastic and can be used to shape the mastic
     
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  7. timdownieuk

    timdownieuk Funster

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    I'm not sure what Sikaflex 512 is made of but I'm pretty sure it's not any kind of silicone.
     
  8. timdownieuk

    timdownieuk Funster

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    Ah, I've not tried that. I'll give it a go. Cheers.

    Tim
     
  9. timdownieuk

    timdownieuk Funster

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    You're quite right, it's a bit late now. :Smile:

    Mark 1 fingernail seems pretty good at removing what's left. I'll certainly be a bit more careful in future!
     
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  10. Mel

    Mel Funster

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    Why will thinners attack new paint and not original?
    I know its your job so I am not saying it cant just wondered why

    Thanks

    Mel
     
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