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:firstname.lastname@example.org]
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 <email@example.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 <firstname.lastname@example.org>
To: Restoration and Maintenance <email@example.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.
Frederick M. Hueston PhD
Recommended stone care products http://www.stonecarecentral.com
Many of my articles can be found at www.stoneandtilepros.com
Listen to my radio show www.blogtalkradio.com/drfred
office 321 514 6845
See my specialty products at www.godrfred.com
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