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Sealer for sandstone slabs?

Discussion in 'In the Garden' started by Ian H, 12 Jun 2018.

  1. Ian H

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    Is there a sealer to prevent them from going green?

    I layed some grey ones at our last house and never did anything with them and after a white they didn't look so good, even after jetwashing.

    I'm looking for something for a new patio which has a stone wall around it so I think only stone would suit:

    IMG_8738.JPG

    I did like the black limestone but I think loads of it on the floor would be too much.
     
  2. sodthisforfun

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  3. Charlie George

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    Ian don't use black limestone every other problem on paving expert seems to be on these, i have a lot of trees in my garden and find everything covered green, i used kandla grey indian stone(untreated) on large patio and only clean once or twice a year, even with algae on it does'nt look too bad.
    Theres lots of info on sealers on Paving expert and i decided not to bother, the stone walling you've got could be cleaned before building ,but i woudn't bother sealing it myself.
    I take it the house is all done inside now?(y)
     
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  4. Ian H

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    No, still not done inside but its too nice outside to ignore the garden, that's what I tell her anyway ;)

    The sealer is a bit more expensive than I thought, I will need a fair few tubs of it. I'll look on the paving expert page, I did read about faded black limestone on there which made me think Raj Green or the Kandla Grey would be better options.
     
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