Adhesive Mapei 3,78L

Type 1 is a professional-grade, traditional, nonflammable, organic adhesive for setting impervious, vitreous, semivitreous and nonvitreous tile over gypsum drywall (walls only), cement board, exterior-grade plywood, concrete and masonry block. This adhesive is used for interior applications only. Available in 946, 3.78 and 13.23 L.