Caulk which is suitable for use in interior, intermittently wet areas like these commercial buildings’ restrooms. All porcelain and natural stone tile throughout both towers was grouted with Prism® Ultimate Performance Grout in shades to complement the materials for a modern, monolithic look. Fast- setting, lightweight Prism sets a new standard in grout technology. This calcium aluminate-based for- mula meets ANSI A118.17 high performance standards and will not contribute to efflorescence. Prism demonstrates uniform, consistent color without mottling or shad- ing, regardless of tile type or vari- able weather conditions such as humidity. These reliable results were important based on fluctuat- ing environmental conditions at the jobsite due to the height of the towers and the effect of all-glass walls. Recycled aggregate con- tent makes Prism 30% lighter than other grouts and delivers superior, smooth handling in grout joints as narrow as 1/16”. “Prism is more colorfast than other cement grouts and we do not see any mottling, which makes everyone happy,” said McCandless. Aqua Mix® Sealer’s Choice® Gold was applied to protect both tile and grout from staining during and after installation. Premium quality Sealer’s Choice Gold is a water- based formula with low VOCs. This is important for enclosed installa- tion areas like restrooms as well as compliance with California’s environmental regulations. This Feature: CUSTOM System selected in Orange County The lobby showcases 30” x 30” Taj Mahal quartzite pavers. 46 TileLetter | June 2018