I have used it many times. I have used it on porcelain, other types of ceramic and even mercer tiles. It is hard to generalize whether it will definitely work because it really depends upon the content of the glaze. But I have restored some pretty beat up tiles with the stuff. I always try to use some weight but that may not be that necessary depending upon the tile. You just have to test it out. I have mainly used it with a floor machine but have used it with an angle grinder.  For a 6 sf floor area, you squirt out about 2 oz then a couple of shots of water with a hand pump to activate it (sort of like MB-12) and then polish with a hogs hair pad testing in 30 second increments. My main complaint with it is that it gets into grout and turns it white, which isn't really a problem if you want the grout to be white, but it is a big problem if you want to keep the grout lines dark. A good extractor comes in handy. My sales pitch to clients is that, if they are going to go through the trouble to polish the tiles, they owe it to themselves to colorseal the grout lines. That is to say, sell it as a package. 
B


________________________________________
From the desk of
Baird Standish
Managing Partner
Facility Specialists, LLC
15 West Highland Ave. Suite E
Philadelphia, PA 19118
Phone: 215-732-7505
Fax: 215-546-9160
www.facspecs.com

On Apr 22, 2015, at 5:31 PM, Mike M <nulifesc@bigpond.com> wrote:



On 22 Apr 2015, at 10:36 pm, Baird Standish <bairdstandish@gmail.com> wrote:

CRC is Ceramic Restoration Cream made by National Chemical lab. I use it often with good results on ceramic/porcelain floors. It works better on some finishes than others. particularly good on old porcelain. Usually need a fair amount of weight on a floor machine. I haven't had as much success with it on an angle grinder because of that. 
B


________________________________________
From the desk of
Baird Standish
Managing Partner
Facility Specialists, LLC
15 West Highland Ave. Suite E
Philadelphia, PA 19118
Phone: 215-732-7505
Fax: 215-546-9160

On Apr 22, 2015, at 6:28 AM, Stu Rosen <rosen.stuart@gmail.com> wrote:

What is crc?
Her from has a porcelain polish
Very fine pumice will knock down the finish slightly.

Sent from my iPhone

On Apr 22, 2015, at 1:20 AM, Stephen Webb <stephen@newlifemarblerestoration.com> wrote:

Customer has etched their shower walls with some type of cleaner, I sampled a spot with CRC and had some results but seemed to polish up the finish higher than the factory. Is there and honing product for porcelain to knock down a finish a bit? thanks



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