DSA, Deutsche Steinzeug America, Inc. - Ceramic Tiles367 Curie Drive Alpharetta, GA 30005 Tel: (770) 442-5500 Fax: (770) 442-5502 E-mail: info@dsa-ceramics.com Web site: http://www.dsa-ceramics.com 
TUNNEL CERAMICS DSA is the only remaining manufacturer offering white bodied, keyback tunnel tile. Our Chroma2 glazed ceramic keyback tiles have been used on tunnels around the world. In the U.S. alone, tunnels have been designed with 41⁄4 x 41⁄4, 5 x10 and 8 x 8. The special keyback profile is required for structural purposes as it relates to vibration and impact in a tunnel environment. The keyback provides a mechanical bond, in addition to the chemical bond of mortar that affords engineers a comfort factor over traditional tile. In addition, Chroma2’s properties can meet the stringent requirements set forth by State Departments of Transportation and other governmental concerns, such as bond strength, color measurement, glaze hardness, and water absorption. |