Bostik Large Format Floor™ is a polymer-modified mortar designed for floor installations of large format ceramic tiles, porcelain tiles, natural stone, granite, slate, and marble. Use over properly prepared, structurally sound-concrete, exterior grade plywood (interior/dry use only); cementitious backer board and existing ceramic tile.
Coverage: 50-60 square feet per bag using 1/4"x3/8" square-notch trowel.
Open Time: 30-40 minutes at 70°F
Shelf Life: 1 year from date of manufacturing in unopened bag.