Ultra-Premium high performance mastic is for interior installations of ceramic, porcelain and stone tiles. Hydroment Ultra-Premium is ready to use and provides excellent vertical grab for large body wall tile.

Ultra-Premium Mastic exceeds the requirements of ANSI A136.1 (Type 1) mastics. Hydroment Ultra-Premium mastic may be used over concrete, cement block, cement backer board, Dens Shield, gypsum wallboard, veneer plaster, Hydroment Ultra-Set, Black-Top 60210 and Gold Coat membranes.

Available in 3.5 gal.