TECH TALK –––––––––––––––––––––––––––––––––––––––––––––––––––––––––– H.B. Fuller Construction Products introduces TEC® Ultimate 6 Plus Polymer Modified Mortar specifi- cally designed for installing gauged porcelain tile panels/slabs and large heavy tiles (LHT). TEC has devel- oped Ultimate 6 Plus Mortar to meet the particu- lar challenges of installing excep- tionally large thin tile panels and LHT on floors or walls. The new mortar offers extreme versatility. TEC Ultimate 6 Plus Mortar has a unique set of features that allows grouting in six hours – even when installed over the most impervi- ous substrates such as uncoupling membranes. Easy-to-use Ultimate 6 Plus Mortar has an extended pot life of two to three hours and open time of 50-60 minutes, allowing installers much-needed time to get full coverage and make adjust- ments. While this TEC mortar is formulated for gauged porcelain tile panels/slabs and LHT, it also works well on traditional tile for both floor and wall applications. TEC Ultimate 6 Plus Mortar exceeds ANSI A118.4TE and A118.11. Building Code, CSA, CGSB, etc. This Handbook has a wealth of information drawn from years of experience from tile contractors from coast to coast who have shared their lifetime of knowledge and expertise. Following a similar NTCA Reference Manual format, The Problem, the Cause, the Cure and Prevention in the Future is how the Handbook has been organized. In addition, when appropriate, a template with an informative let- ter is included after each topic. These letters can be used to inform customers what the issue is and what the appropriate solution may or may not be or what standard or code may or may not be met. Key topics Some of the key topics that are discussed are: • General Statement on Moisture Emissions, • Curing Compounds and Release Agents, • Movement Joints, • Engineered Wood, • Division 3 vs Division 9 Floor Flatness Tolerances, • Questionable Substrates, • Poured Gypsum Underlayments, • Waterproof Underlayments, • Crack Isolation Underlayments, • Uncoupling Underlayments, • Critical Lighting Effects on Tile Installations, • Gauged Porcelain and Porcelain Slabs, 74 TileLetter | August 2018