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Using PVA to seal exposed chimney brickwork?

Discussion in 'Building' started by macadonald, 18 Jun 2013.

  1. macadonald

    macadonald

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    Hi guys,

    As part of renovations, our old chimney was opened up and an oak sleeper installed as a lintel. We will eventually get a wood burner installed, but in the mean time we have nice exposed brickwork at the back. Keen to keep this, but there is quite a bit of black soot.

    What are my options?

    Can I simply PVA over this to seal it or will it look rubbish?

    My other thought is taking a wire brush on the end of a drill to it. Sure it will be very messy but hoping the blackened bricks might clean up?

    Any experience out there?

    Thanks
     
  2. JohnD

    JohnD

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    What would the PVA be supposed to achieve?

    It is water-soluble and not very durable. It must not be used on a surface that you might one day hope to paint.

    Do you want to bind a dusty surface?

    I doubt anything will stick to the soot.
     
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  4. macadonald

    macadonald

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    Thanks John.

    Yes essentially trying to seal the bricks. As an alternative to sealing, what's best to clean them, a chemical cleaner or good old wire brush. It's not just a thin stain of soot, but thick and old.
     
  5. JohnD

    JohnD

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    scraper followed by wire brush I should think. The wall might be greasy afterwards. A power jetwasher with oil remover for drives might get the remains off if so
     
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