IWR (Integral Water Repellent Mortar)

SPEC MIX Integral Water Repellent (IWR) mortar is specially formulated to reduce water penetration, shrinkage and efflorescence of masonry mortar joints. By incorporating a proprietary, dry polymeric integral water repellent admixture during the SPEC MIX manufacturing process, the designer, specifier, owner and contractor are assured the mortar on their project will repel moisture, while maintaining optimal workability and flexural bond strength. When using ASTM C 1357 “Test Method for Evaluating Masonry Bond Strength” to compare the flexural bond strength of SPEC MIX IWR Mortar to the same reference mortar mixed with the leading liquid admixture, the SPEC MIX IWR mortar demonstrated a 46 percent increase...