[Dan Williams]

Can anyone help me, I have a job on and the client wants me to clean quarry slate tiles.
Does anyone have any experience on this and what is the best chemical to use?

cheers

[Liahona]

You shouldnt need chemicals. Upwards of 200 degrees and between 2000 and 3,500 psi will clean just fine. Best, Dave.

[Dan Williams]

hi dave
I was going to clean them with a buffer, I would not risk it with an extraction machine might scratch tiles, what do you think?

[Liahona]

are the tiles inside the house or outside? Best, Dave.
 

[Dan Williams]

inside, in the kitchen

[Liahona]

Ok. A buffer wont get that good a result. You really need a good high pressure portable, 1200 psi or close too,  or preferably a truck mount and clean it at high temp amd pressure. The sx-12 and similar wands have a teflon head so shouldnt scratch the surface. There are various chemicals available to clean hard floors, just depends on what you need and when as they are either high in alkali or in acid. Cheers, Dave.

[Tony Gray]

I cleaned some china slate tiles in a restraunt last night that were thick with grease and oil.

I used a general de-greaser which  I brushed into the tile to loosen dirt. Then sucked out the slurry with 2000 psi and very hot water.

[Jeremy]

As a matter of interest, how do you get 2000psi of very hot water. I have a Prochem Everest HP which can either generate 1200psi of very hot water or 3000psi of ambient water.

[Tony Gray]

The water was constantly heating as after each few wand passes with water on I had to suck up the slurry. I know it was very hot as I kept burning myself on the coupler. Could have gone to 3000 psi but found what I was using sufficient.