John is right...I would be extremely careful since sealing when there is an efflorescence problem can cause the stone to spall. It is critical that you find out where the salts are coming from. You may also need to remove a tile or take a core sample to determine the backing material. I have seen drywall used which can be a problem. I would not guarantee anything.
Aldon sbs sealer after a thorough seal with the the scc solvent sealer usually works well for me. Although most of the time the "efflorescence" ends up being soap and calcium build up. Most slates are dark in color And show all of the above quicker.Ace
Sent from my iPhoneStuart,
I don’t think you are going to find a product that will totally keep the efflorescence from coming back. There are several reason the efflorescence is occurring.
1. There is moisture that is getting into the stone. This could be coming in from the surface or it could be coming in from the sub straight.
You first need to see if there are cracked grout lines, if the corners of the shower the grout has not separated from stone allowing water to penetrate into the walls
Is the floor drain complete sealed where water is not getting between the drain and the tile.
2. This being a slate the stone if not sealed is more likely to absorb more moisture and then as it dries the efflorescence will appear.
The cleaning process will be to use an acid based product to remove the efflorescence, check all grout line and re- grout where needed, in corner along the floor and the corner of the shower remove the grout and caulk in those places. This will help keep the moisture from getting behind the stone .
Then seal the slate with a good solvent base impregnating sealer. I would recommend using StoneCare Central Solvent based sealer.
I would never make any guarantees to the customer that the efflorescence would not come back. It a shower , a porous stone what more can one say.
John E. Freitag
President/Director
The Stone and Tile School
Office 407-567-7652
Cell 407-615-0134
jfreitag@thestoneandtileschool.com
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From: Stuart Young [mailto:santafefc@sbcglobal.net]
Sent: Thursday, November 06, 2003 8:22 AM
To: Restoration and Maintenance
Subject: [sccpartners] slate shower
Gentlemen,
I just went to look at a slate shower. The slate has a natural finish. No enhancer, no laquer. The owners like the natural finish, however, It is looking rather white with all the efflorescence coming through. The owners want us to clean it and seal it so that the efflorescence goes away and never comes back through the stone. It is on the walls as well as the floor of the shower. Is there a natural finish sealer out there that will do this job? How do I apply it?
Stuart Young
Santa Fe Floor Care
----- Original Message -----
From: John Freitag
Sent: Thursday, August 04, 2011 11:32 AM
Subject: [sccpartners] NEW CLASS
TO ALL PARTNERS ,
THE STONE AND TILE SCHOOL is now offering a certification class for the application of Marble-Loc. Marble-Loc is made to apply onto marble surfaces where customers have ongoing problems with etching .
The uses of this product would be for table tops, bar tops , vanity tops in hotel guest rooms and other areas where ongoing etching is a problem. Anyone that is applying this product must be certified to apply this product and The Stone and Tile School is the official training center for this application form the manufacturer. This is a hands on training session. You will learn the proper preparation and applications and the different finishes you can offer your customers.
DATE FOR THE CLASSES
Friday September 2 & 3
Cost for the class $495.
Class limited to 6 students
To sign up call Pam at 407-567-7651
Stone and Tile Pro Partner that signs up receives a 10 % discount on this training as a benefit of being a Stone and Tile Pro Partner .
John E. Freitag
President/Director
The Stone and Tile School
Office 407-567-7652
Cell 407-615-0134
jfreitag@thestoneandtileschool.com
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