For most standard installations. Good bond strength. Recommended Primary Use (See technical data sheet for details): Longest Side of Tile: Tile Type: Ceramic: 0-15 inch; 15 inch+. Porcelain: 0-15 inch; 15 inch+. Stone: 0-15 inch; 15 inch+. Glass: 0-3 inch; 3 inch+. Average Coverage: Longest Side of Tile: Less than 8 inch: 1/4 inch x 1/4 inch x 1/4 inch square-notch trowel size; 80-95 sq ft per 50 lb. bag. 8 inch to 15 inch: 1/4 inch x 3/8 inch x 1/4 inch square-notch trowel size; 60-75 sq ft per 50 lb. bag. For tile with the longest side 15 inch+, use a medium bed mortar from Custom design for large format and heavy tile. Recommended minimum coverage (80% for dry areas and 95% for wet areas and exteriors). Back buttering may be necessary. Chart for estimating purposes. Coverage may vary based on installation practices and jobsite conditions. For more tile size, use the material calculator at www.CustomBuildingProducts.com or contact Custom Technical Services at 800-282-8786. Polymer Modified: Exceeds ANSI: A118.4, A118.11. www.CustomBuildingProducts.com. Refer to technical data sheet for complete application, use, and limitation information (www.CustomBuildingProducts.com or (800) 272-8786). Made in USA.