i would call it solvent, it an alcohol based product according to their msds sheet ..I have not used it, was just aware of it.

From: Mike Marsoun <nulifesc@bigpond.com>
To: Restoration and Maintenance <sccpartners@stoneandtilepros.com>
Sent: Thursday, November 24, 2011 7:57 PM
Subject: RE: [sccpartners] Sandstone Densifing

Thanks.  Their info is a little vague.  Is this solvent based? Is it a colloidal silica. There is something like that here. 
 
From: Fred Hueston [mailto:fhueston@gmail.com]
Sent: Friday, November 25, 2011 11:26 AM
To: Restoration and Maintenance
Subject: RE: [sccpartners] Sandstone Densifing
 
Have to agree with John,, not to mention that there may be some adverse reactions
On Thu, Nov 24, 2011 at 8:22 PM, john jackson <kcstoneguy@yahoo.com> wrote:
prosoco has a producct called H100 that can be used on Sandstone. their website is www.prosoco.com. It is a consolidation product.
 
I would not think a concrete densifier would be of any use on sandstone since there would not be calcium, or much of it, to interact with , since a sandstone should be mostly quartz based..although all these stone vary a bit, and your sandstone may benefit, but I wouldnt say it would benefit much. I f its been treated already with 3 coats of dry treat, I wouldnt think much would penetrate at this point
 
 
 
From: Mike Marsoun <nulifesc@bigpond.com>
To: Restoration and Maintenance <sccpartners@stoneandtilepros.com>
Sent: Thursday, November 24, 2011 6:57 PM
Subject: [sccpartners] Sandstone Densifing
Has anyone tried to densify sandstone?
 
I assume it would not work on a quartzic sandstone, but may be possible on a calcerous sandstone, (ASTM type 4.1.1)  Any thoughts regarding sodium/potassium/lithium silicates. The floor has been sealed with 3 coats of “Dry Treat” so it may not get a reaction…if it is a reactive type of densifier to be used.
 
Just looking for a way to fill the pores for a biege sandstone (very similar to Himalyan) which is in a high traffic commercial area, and very difficult to keep clean.  
 


 

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