Bill,
It's Carl,
I'm figuring the same thing as you, either something was put on it or the
coloring in the tiles washed out leaving it looking etched.
We took new tiles out of the box and they looked the same as the
undamaged tiles so who knows what was done at the factory.
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Tuesday, September 23, 2014 8:37 PM
Subject:
Re: Porcelain
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Pat, I had one a few years back. It seemed to
had some type of sealer that was allowed to dry on it. I can not say what it
was but we went in for Walker Zanger to see what we could do. We
cleaned it with a degreaser using a a 3m green pad to remove
what was ever on the surface and it took care of the problem. When we
cleaned it the tile was lighter when we got done so it seemed to me that
something was put on but it would not scrape off with a blade and really
showed no visual signs of anything but even water would leave marks
prior to our cleaning.
Hope
this helps.
Bill
Selik
Gourmet
Stone Care
Did anybody ever see something like this happen on a new Porcelain floor.
They said it is a spill from coffee.
Then the tile supplier recommended cleaning with Aqua Mix tile &
grout cleaner (alkaline) and the same thing happened.
No residue on surface, can't feel a difference on tiles, if you wet it,
it darkens for a split second
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