I agree  it looks like some kind of coating on it.

On Thu, Oct 12, 2017 at 8:34 AM, Baird Standish <bairdstandish@gmail.com> wrote:
I would try acetone and/or something stronger with methylene chloride on a small patch just to see if it takes it off. Also test an area with a grout saw very lightly to see if it cuts through the stuff. We just worked on 6 public hotel bathrooms and used a grout saw lightly over the grout lines to get  a coating off.  Worked fine without a lot of mess. 
B


________________________________________
From the desk of
Baird Standish
Managing Partner
Facility Specialists, LLC

On Oct 12, 2017, at 7:59 AM, Stuart Rosen <mail@stoneshine.com> wrote:

Looks like a type of paint,colored coating or color seal.

On Wed, Oct 11, 2017 at 6:16 PM, Dan Brown <dan@vcleaning.com> wrote:
We have been tasked to clean and make some repairs on this floor.  It appears that someone had skim coated this years ago with a nonsanded product...and definitely not cementitious.  I would love to skim coat it with the same or similar product.  Can anyone help me identify this?  Thanks so much!  <image1.jpeg>

<image2.jpeg>

image3.jpeg

Thats a chip that i have bagged.  

Dan Brown
Victory Cleaning Systems

 
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