CoatingsPro Magazine

JAN 2018

CoatingsPro offers an in-depth look at coatings based on case studies, successful business operation, new products, industry news, and the safe and profitable use of coatings and equipment.

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COATINGSPRO JANUARY 2018 95 Gathering the Facts My plan was simple: walk all eight of the bathrooms for purposes of photo- graphing the issues found throughout the floors. Generally, I prefer to do this first step with as many of the principals in attendance as possible. Listening to everyone chat amongst themselves and with me usually provides a treasure- trove of information that I diligently note during our walkthrough. W hat I witnessed in all eight bathrooms on this walkthrough were similar conditions: large spots where the coating had seemingly been abraded, leaving the coating dull and lifeless in appearance. Scratches caused by abrasion were filled with an unknown dark-colored substance, which I believed to be compacted soil. e spots within each bathroom were randomly located, and while all the spots shared similar physical manifes- tations, the sizes and locations within each room varied. At the end of the walkthrough, I explained that I needed to take partial cores of the concrete so that I could properly sample the coating. I arranged with the coating supplier to have mechanics on hand to do the coring under my direction. ey then patched everything up after coring. I asked for permission to take five cores: four from problem areas and one from a non-problem area, which I hoped to use as a control sample. I identified the locations that I wanted to core, then asked for everyone's blessing. With everyone on board, a date and time for coring was agreed to. In the meantime, I requested additional information: e supplier was to provide me with product data sheets about the applied coating, and the college administration was to provide me with complete maintenance records and processes. e coring itself was fairly simple and uneventful. During the coring, I was able to examine the coating a little more closely, focusing on the surface scratching that I believed to be caused by abrasion. From the field tools avail- able to me, it did not appear that the abrasions penetrated the coating to the basecoat below, but I would rely on the independent coating laboratory that I had retained for this project to provide the conclusive answers. Cores were submitted to the labora- tory. Included with the cores were a series of photos that I took during my initial job walk. I have found that when assessing possible performance-related issues with any floor covering, photos that put the floor and the issues with the floor into some sort of context are invaluable to the lab personnel. I asked the lab to look at a couple of things: 1. to determine the quality of the coating and, to the extent possible, the coating application; 2. to confirm the presence of the abrasive markings; 3. to give a basic identification to the material that I found embedded within the surface scratches; and 4. to opine about a possible cause of the coating damage. Cores taken for laboratory analysis Typical bathroom layout - some deterioration to the coating surface can be seen as dull spots Spotted School Floors

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