Walter ,
The chalky residue is probably from the aggressiveness of the
brush and the acid. I would use a honing powder to remove the chalky look you
may need to start with a 200 grit powder then use a 400 powder, this should
bring back most of the color then apply a water based color enhancing sealer.
If you’re looking to add some shine you could use Stone Lok from
Richard James Chemical. If you need additional information call me.
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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www.thestoneandtileschool.com
From:
wnartowicz@gmail.com [mailto:wnartowicz@gmail.com] On Behalf Of Walter
Nartowicz
Sent: Friday, May 28, 2010 12:12 PM
To: Restoration and Maintenance
Subject: [sccpartners] slate dusting
I am doing a clean and seal job on a slate floor- I'm not
exactly sure what type of slate it is, only that it is a blue/grey color with a
little bit of texture to it. We've acid washed it with a green nylon scrub
brush. The cleaning process is causing quite a bit of slurry, I believe due to
the aggressive brush. Normally I could put a nice solvent based color enhancing
sealer on it and it would take the chaulky look away. In this case we are
limited to using an immpregnator sealer which leaves the slate with the chaulky
look which the customer is unhappy with. Any ideas on how to get rid of the
chaulkyness?
--
Jim Corron
Mid Atlantic Stone Solutions
www.midatlanticstonesolutions.com
4607 Fayetteville Road
Raleigh, NC 27603
919-772-2155 (Main Office)
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