In the tempering process, glass is heated to approximately 1200° F (650° C) and then rapidly cooled with air. This process locks the outer surface of the glass in compression which dramatically increases the glass strength. When fully tempered this glass is approximately four times stronger than a piece of annealed glass. More importantly, when tempered breaks it dissociates into small pieces which is considered a break-safe pattern. Our tempered glass meets important safety codes, including ANSI Z-97.1-2009 and CPSC 16CFR 1201 categories I and II.
Source: www.cardindalcorp.com
