Cleaning Oamaru stone

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8 years 6 months ago #36549 by kai
Cleaning Oamaru stone was created by kai
we have a lovely stone statue. In Canterbury it was wonderfully white. here it has turned black. I know it is a soft stone, so don't want to water blast it or put any chemical on it that would react with the stone.

How do I get I back to the nice white stone it used to be

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8 years 6 months ago #476380 by muri
Replied by muri on topic Cleaning Oamaru stone
Funny, we were talking about that exact thing waiting to get into the winter gardens on sunday and discussing the cleaning of the white statues there
Apparently wet and forget is best

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8 years 6 months ago #476386 by Stikkibeek
Replied by Stikkibeek on topic Cleaning Oamaru stone
A few years ago, the council hired someone to clean our soldier at the cenotaph. He is Oamaru stone too. He scraped off years of white paint, taking it back to the bare stone. It doesn't look half as striking as it used to do. I think in this case it would have been better to leave painted

Did you know, that what you thought I said, was not what I meant :S

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8 years 6 months ago #476396 by kindajojo
Replied by kindajojo on topic Cleaning Oamaru stone
As it's limestone, avoid anything acid, depending on what has stained it, napisan work s well on mould and mildew, try a small patch first.

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