Hello Stu,

The slate is outdoors, most is covered, but some is exposed.  I attached photos, but here they are again.

Thanks,

Barry

On Thu, May 31, 2018 at 6:42 PM, Stuart Rosen <mail@stoneshine.com> wrote:

Where is the slate? Inside/outside

We generally run Malish grit brushes on slate starting with 180 then finish with 500 and color enhance. Klenzstone will etch slates but our light acids are fine.

Can you send a pic of the stone

Sent from my iPhone

On May 31, 2018, at 2:57 PM, Bob Murrell <bmurrell@m3techinc.com> wrote:

Acids do remove cement-based grouts very well. However, they may also activate salts (calcium) in the slate or other similar type stones causing a chalky look when dry. I have seen this many times. A good solvent-based impregnating sealer (preferably a color enhancer) should rectify this issue and then all should be good.

Always test first, to confirm results and procedure, before general application.

 

Bob Murrell

Director of Operations

SCC/M3 Technologies Inc.

Cell-865-607-0957

Office-800-342-4533

bmurrell@m3techinc.com

www.m3techinc.com

Skype-robert.murrell8

 

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From: sccpartners@stoneandtilepros.simplelists.com [mailto:sccpartners@stoneandtilepros.simplelists.com] On Behalf Of Barry Raduta
Sent: Thursday, May 31, 2018 2:42 PM
To: sccpartners@stoneandtilepros.simplelists.com
Subject: Outdoor black slate on patios

 

Hello Partners,

Thank you in advance for any help you can give me to help this client.

A few weeks ago I asked for help to clean up grout stains on flagstone and Dr Fred said to use a mild acid and Stu recommended Klenzstone #4 or #5.  I did not get to that job yet, but I saw about 2000sf of mostly black slate yesterday and I am wondering if it should be tackled in a similar manner.  Some of the tile spaces are clean and others show a deposit (calcium?).  I was thinking of a medium, nylon brush as my tool.  I was going to do a test area with just water to see how clean I can get the slate without the deposits and other test areas with a recommended product to remove the deposits.  Any thoughts?

 

 

--

Thank You,
Barry V Raduta
Diamond Stone & Tile Care-South

Stone & Tile Pros

843-540-1445

Visit list archives, subscribe, unsubscribe or change your subscription preferences: http://stoneandtilepros.simplelists.com/sccpartners Start a new conversation (thread): sccpartners@stoneandtilepros.simplelists.com

Visit list archives, subscribe, unsubscribe or change your subscription preferences: http://stoneandtilepros.simplelists.com/sccpartners Start a new conversation (thread): sccpartners@stoneandtilepros.simplelists.com

Visit list archives, subscribe, unsubscribe or change your subscription preferences: http://stoneandtilepros.simplelists.com/sccpartners Start a new conversation (thread): sccpartners@stoneandtilepros.simplelists.com

--

Thank You,
Barry V Raduta
Diamond Stone & Tile Care-South

Stone & Tile Pros

843-540-1445

Visit list archives, subscribe, unsubscribe or change your subscription preferences: http://stoneandtilepros.simplelists.com/sccpartners Start a new conversation (thread): sccpartners@stoneandtilepros.simplelists.com

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