Almatis BayGranite®17 ATH (aluminum trihydroxide) is an inorganic hydrated alumina designed for use in polymer systems as a flame retardant and smoke supressive additive. BayGranite® 17 is more accurately designated chemically as aluminum trihydroxide, Al(OH)3, and is produced through processing of alumina-bearing feedstocks. Although BayGranite® 17 is a dry powder, when heated above approximately 220°C it decomposes into approximately 35% water and 65% alumina by weight. BayGranite®17 is a nonabrasive, low density material with a Mohs hardness index of 2.5 - 3.5 and a specific gravity of 2.42. Almatis BayGranite®17 ATH is compatible with polymer systems, and is designed for applications that require low-soda ATH products.