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Lime mortar on K rend

Discussion in 'Plastering and Rendering' started by waggonway, 19 Aug 2021.

  1. waggonway

    waggonway

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    Hi, I have recently had the pointing on a sandstone wall done. Unfortunately some of the mortar has marked a nearby new wall which is rendered with K rend. Can I use brick acid to clean it?

    thanks
     
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  3. JohnD

    JohnD

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    lime mortar is a bit soft and slow to harden. Have you tried a stiff brush and hosepipe?
     
  4. waggonway

    waggonway

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    Hi John,
    Thanks for your reply. Yes I have a go with a brush and water, even escalated to a power washer. It is a few marks, notably a handprint and they have set hard. I agree totally that is should be soft but it is just not moving.
     
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