Stephen,

I assume this is a newly installed floor. My first approach would be to
secure a piece of tile that out of the carton to see if it has this problem.
Second I would speak with the installer to see what did in during the
install , how it was grouted, the type of grout etc. it sound like this was
an epoxy grout install. My bet would be there is a residue from the epoxy
grout on the surface. You may want to try using the epoxy grout remover, if
that does not work then try an abrasive , be careful not to dull the shine.
8000 or even the 11,000 pad would be the thing to try. Try it wet then try
it dry to see if the residue comes off. make sure you have the customer
release that you are not responsible if through your testing you are not
responsible for any damage to the  materials. Porcelain tile are not easy to
repolish and in most cases you will not get the factor finish.
Try you abrasives with weight and without weight.

Proceed with caution

John E Freitag

Director
The Stone & Tile School
Office 407-567-7652
Cell 407-615-0134
jfreitag@thestoneandtileschool.com

www.thestoneandtileschool.com

-----Original Message-----
From: list-manager@stoneandtilepros.simplelists.com
[mailto:list-manager@stoneandtilepros.simplelists.com] On Behalf Of Stephen
Webb
Sent: Wednesday, May 28, 2014 2:28 AM
To: Stone and Tile PROS Technical Support
Subject: Re: [sccpartners] High Gloss porcelain

Do you think 8k grit would be good?

On 4/12/2014 11:47 AM, Mike Marsoun wrote:
> It's called optical hazing and is super common with vitrified porcelain.
Diamond encrusted pads MAY do it but start very fine and use a lot of
weight.
>
> Sent from my iPhone
>
>> On 13 Apr 2014, at 4:43 am, Stephen Webb
<stephen@newlifemarblerestoration.com> wrote:
>>
>> Customer has a recently installed high gloss Italian porcelain tile with
spectra lock epoxy grout. The problem is hazy splotches first thought to be
residue from the grout install. It has the appearance of  fogged mirror. I
tried polish, stripper etc with no effect. then I looked at it through a
magnifying glass and could see the foggy areas have more open pores than the
glossy areas. Could anything in the install have cause this? Can porcelain
be polished and with what? Customer is going to pull extra tiles out of
storage to see if the problem was preexisting.
>> Thanks
>> Stephen
>>
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