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waynebarry

  • Posts: 254
Portland Stone
« on: March 07, 2011, 02:22:49 pm »
Hi can anyone tell me what is the best way of cleaning Portland Stone?

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terrazzoman

  • Posts: 264
Re: Portland Stone
« Reply #1 on: March 07, 2011, 04:42:43 pm »
is it vertical or horizontal and how many m2
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waynebarry

  • Posts: 254
Re: Portland Stone
« Reply #2 on: March 07, 2011, 06:52:07 pm »
vertica,l havent seen it yet ideally by hand.
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Matt Gibson

  • Posts: 2482
Re: Portland Stone
« Reply #3 on: March 07, 2011, 07:08:00 pm »
I've used a variable speed grinder, with a soft backing pad and a high grit paper before. Re-dressd the stone, it looked great. Just make sure you keep it wet. That only works for flat stone and the methodwas used on upright pillars.
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waynebarry

  • Posts: 254
Re: Portland Stone
« Reply #4 on: March 07, 2011, 07:24:26 pm »
Thanks Matt sounds abit complicated to me ;D
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terrazzoman

  • Posts: 264
Re: Portland Stone
« Reply #5 on: March 07, 2011, 08:23:16 pm »
you can use running water not under pressure and a nylon hand brush and srubb the stone down slowly (let the water sink into stone ) or sub the work out!!!!
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Matt Gibson

  • Posts: 2482
Re: Portland Stone
« Reply #6 on: March 08, 2011, 08:15:38 am »
look up nebulous stone cleaning.
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