Custom Building Products 2.5 Gal. Thinset Mortar Admix Non-Slip Backing (larger tiles require longer dry

(larger tiles require longer dry time)

This acoustical barrier delivers outstanding sound absorption

Order an additional 10% to accommodate cuts and replacements

The AC4-rated surface

Custom Building Products 2.5 Gal. Thinset Mortar Admix Non-Slip Backing (larger tiles require longer dryThe Custom Building Products 2. 5 Gal. Thinset Mortar Admix is a high performance liquid polymer designed to enhance unmodified thin set mortars. Used in place of water, this admixture significantly boosts bond strength, flexibility, water resistance, and freeze thaw durability. Ideal for challenging installations, its compatible with PremiumPlus, MasterBlend, or CustomBlend mortars. Whether you're setting dense tile, installing over hard to bond