Bostik 30850621 3.5G Professional Grade Mastic (D70PG5) (1 Pack)

Professional Grade™ Mastic is a high performance adhesive for the interior installation of most types of ceramic and stone tile (except moisture sensitive marble). Bostik Professional Grade™ Mastic is ready to use for a fast, professional installation and provides excellent vertical grab for large bodied tiles. Bostik Professional Grade™ Mastic exceeds the requirements of ANSI A136.1 Type I.