to build up to 3” and spread to almost a feather edge (1/8”). You don’t usually get that in a single product.” Underlay C is a blend of care- fully-selected polymers, Portland cement and graded aggregates that do not require the use of latex admix or jobsite blending. The pre-mixed product is versa- tile and economical, which helped David Allen Company save time and money by allowing a faster installation. Bond strength; fast-setting grout Merkrete proved the perfect match for another specific chal- lenge, considering the strength of the mortar required. “We used very large and heavy natural stone, which requires a mortar with a super-high bondability that can handle the weight of the stone,” said LaCour. Merkrete 820 Merlite is a one-step, polymer-modified, lightweight setting adhesive for installing extra-large-format porce- lain, ceramic tile and natural stone for both floors and walls, and can be used as thin- or medium-bed setting adhesive for stone. Merkrete proved it could hold its weight. In addition to the waterproof- ing membrane system the hotel required, Merkrete was the trust- ed source yet again in provid- ing high-performance, sustain- able grout throughout the exterior installations. “Merkrete’s ProGrout is a fast-setting, polymer-modified, color-consistent and efflorescence- free high performance grout that Feature: Merkrete system ensures unparalleled luxury with an unmatched setting Merkrete ProGrout worked for varying grout widths throughout the exterior installation. 44 TileLetter | July 2018