Mapei Type 1 Professional Tile Adhesive 1 gal

For use with ceramic and porcelain tile

Excellent grab: up to 12 x 12 inch (30 x 30 cm) tile

Suitable substrates: gypsum wallboard (dry walls only), cement board, exterior-grade plywood (interior only), concrete and masonry block

Mold and mildew-resistant

For use on shower walls. For interior use only