Hi Robin,
take a look at
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there you can find information on our products. There is a special section about slate.
Our company ProStone Inc. is a company specialised in the development and sale of cleaning and protection of natural stone products. Applicable on marble, bluestone, granite, slate, antiquated stones, quartzite etc. We also supply information on maintenance of natural stone and help by removing stains or damage on natural stone.
If something is unclear or you want more information, just contact us.
With kind regards,
Prostone Inc.
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robin snipped-for-privacy@nospam.tohunga.co.uk> wrote in news:010920031401524612% snipped-for-privacy@nospam.tohunga.co.uk: