First test with a regular strong acrylic finish stripper. If that doesn't do it (it usually does), test with something with methylene chloride and use gloves and goggles. Aldon makes premium stripper which works and isn't so noxious. They recommend a method for stripping on their website. Lacquer thinner may also budge it. 
B


________________________________________
From the desk of
Baird Standish
Managing Partner
Facility Specialists, LLC
15 West Highland Ave. Suite E
Philadelphia, PA 19118
Phone: 215-732-7505
Fax: 215-546-9160
www.facspecs.com

On May 3, 2017, at 7:33 AM, Baird Standish <bairdstandish@gmail.com> wrote:

B


________________________________________
From the desk of
Baird Standish
Managing Partner
Facility Specialists, LLC
15 West Highland Ave. Suite E
Philadelphia, PA 19118
Phone: 215-732-7505
Fax: 215-546-9160
www.facspecs.com

On May 3, 2017, at 12:08 AM, Mike Alston <realmikealston@gmail.com> wrote:


Sent from my iPhone

On May 2, 2017, at 11:56 PM, Blain Haeg <blain@goldstandardfloorcare.com> wrote:

That would depend on the level of soiling, grease, and buildup. A natural pad or white pad will normally be very effective. Let the alkaline cleaner dwell for a few minutes, so it can break down the oil and grease that has penetrated into the slate. If you are using any type of hand tool or spinner/extractor, use low speed and/or low pressure, as slate will often shed some of the top layer.

It's possible that they have applied a topical sealer, which would make the process much easier.

Blain Haeg
Gold Standard Floor Care
512.257.3070 office
512.750.1242 cell
blain@goldstandardfloorcare.com
www.GoldStandardFloorCare.com

Check us out on: Facebook, Google+, Yelp, BBB, or Angie's List

On Tue, May 2, 2017 at 10:48 PM, Mike Alston <realmikealston@gmail.com> wrote:
Scrub with a natural pad or something more aggressive? 

Sent from my iPhone

On May 2, 2017, at 10:49 PM, Blain Haeg <blain@goldstandardfloorcare.com> wrote:

Although porous, slate is pretty much bulletproof. Alkaline cleaner, scrub, extract, dry, multiple coats of penetrating sealer. Done.


On May 2, 2017 9:33 PM, "Michael Alston" <realmikealston@gmail.com> wrote:
Good evening, a cheimcal company has contacted me about cleaing several of there slate countertops. I have never cleaned slate countertops and won't see them until Friday and will take pictures then. Can I get some guidance on how to clean slate, thanks. 

--
Michael Alston
President
Surface Care Pros

SurfaceCare Pros
 
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