dye lots. Four others in all differ- ent colors and lots). I figured job complaints would go up with the amount of ceramic tiles that are sold but this seems like an issue that maybe needs an installation adjustment? Looking forward to your thoughts. ANSWER I have done some checking and discovered one similar job that was having a crazing problem. On that job, actual tiles from the lot that had been installed were tested and found to not actually meet the ANSI requirement for crazing resistance. I suggest hav- ing tiles from the actual, installed lots tested to determine whether they actually pass the ANSI and/ or ISO tests for crazing as indi- cated by the factory. The tests will be able to determine if there is proper fitment of the glaze to the tile body. The Tile Council of North America (TCNA) operates an inde- pendent laboratory that can do this testing for you. Katelyn Simpson is the laboratory manager and can provide information on cost and the testing procedure. Katelyn can be reached at (864) 646-8453 or ksimpson@tileusa.com Depending on test results, you will be able to contact the factory with detailed information to dis- cuss resolution. – Mark Heinlein, NTCA Training Director, Trainer/Presenter PERMACOLOR® Select is an advanced high-performance cement grout that offers the industry’s first dispersible dry pigment solution. Designed for optimum per- formance on all types of resi- dential and commercial instal- lations, PERMACOLOR Select is able to withstand the most demanding exterior or interior applications with ease. With PERMACOLOR Select, contrac- tors gain increased productivity and time savings on the jobsite, with a faster time-to-grout and foot traffic permitted in as little as three hours. Additionally, PERMACOLOR Select is easy to clean, meets UL GREENGUARD certifica- tion standards for low chemical emissions and is a component of the LATICRETE Lifetime System Warranty. For more information visit, www.laticrete.com. ASK THE EXPERTS –––––––––––––––––––––––––––––––––––––––––––––––––––– 28 TileLetter | July 2018