We have been removing haze from epoxy grouted porcelain installations with a combination of Tide (surfactant) and honing powders (abrasive) under a black stripping pad on a swing machine. 

Stuart Young
Santa Fe Floor Care
On Apr 13, 2014, at 12:28 PM, Stephen Webb wrote:

Thanks everyone



On 4/12/2014 2:30 PM, Baird Standish wrote:
Hi. I have, for many years, used National Chemical Lab's Ceramic Restoration Creme. It is pre-mixed, a one step process, and works much like 5x except it helps to use a little weight on your machine and it takes less time than 5x. 1 minute recommended for 3-6 sf. Go to NCLonline.com   
B


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Fax: 215-546-9160
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On Apr 12, 2014, at 7:48 PM, stuart rosen <mail@stoneshine.com> wrote:

Here is a good article on optical hazing.

 
I haven't refinished porcelain-I have heard it isn't easy or predictable.
If diamond impregnated pads correct this that's great.
I think Hertron has a polishing compound for ceramic and porcelain.
STP carries one as well-have never used it but heard it works well.




On Sat, Apr 12, 2014 at 5:47 PM, Mike Marsoun <nulifesc@bigpond.com> 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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