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Granite with marks appearing |
Article Number: 219 | Rating: Unrated | Last Updated: Thu, Jul 19, 2007 at 12:00 AM |
Hi Maurizio, We recently had a black granite worktop installed in our new kitchen. We have noticed that where ever we leave a cup down especially hot tea that a ring is appearing. It's almost as if the heat is fading the granite. I am aware that granite is supposed to be able to withstand heat upto 900F. I think we have be have been cheated on the standard of granite. How can we tell? The granite is only about 4 months old we cannot imagine what it will be like in 4 years time. I would appreciate any help or advice that you can share. Regards, Sinead Fitzpatrick
Dear Sinead:
Let's start by saying that the only black mercantile granite that has the legal right to be called “Black Absolute” is the one coming from
There used to be three possibilities to explain the problems that you are experiencing, which are here listed in order of probability (the first being the most probable):
In the last couple of years there's been a change in the scenario above. Another possibility has entered the scene:
4.
Certain manufacturers apply some sort of protective wax to the slabs. It is not actual “doctoring,” since there's no alteration to the color of the stone, but
the result is the same as if the slab had been “doctored” with the “shoe-shine.”
Finally, case 3 above is not as rare as it used to be anymore. At least a couple of “Black Absolute Granites” allegedly from
Having said all that, the remedy to the points 1, 2 and 4 is to remove whatever it is that's sitting on the stone surface, by either stripping it chemically by soaking it with Methylene Chloride, or mechanically, by rubbing on the stone surface a polishing compound for marble (NOT for granite!) with a little bit of water. However,, case 2 is big time consumer fraud.
Case 3 is terminal but it is also full-fledged consumer fraud.
All things considered, black granite – which should be considered among the most enjoyable materials as a kitchen countertop – has made it out my own list of recommended stones.
Until the industry will not straighten its act up by becoming serious about the classification of all the different “granites” on the marketplace and dictate strict rules and guidelines about their characteristics and implied guarantees to the consumers, my position is going to be that from now on.
You can help! Actually, as a consumer of stone you're the best qualified to make things happen! Will you now please read and sign our Statement of Purpose by logging on at:
http://www.marblecleaning.org/purpose.htm? By spreading the word about this valuable site among your friend & family and the stone trades' people you've been dealing you will be rendering everybody a valuable service!
Thank you.
Ciao and good luck,
Mauri
www.marblecleaning.org – The Only Consumers' Portal to the Stone Industry Establishment!
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