BGI's state of the art tempering systems produce exceptionally flat glass, which supports our motto Quality You Can Clearly See.
Fully tempered glass is four to five times as strong, mechanically and thermally, as regular annealed glass in the same thickness. When broken it breaks into many, small, relatively non-sharp fragments. (Adjacent picture of tempered break pattern)
Heat strengthened glass is approximately twice as strong, mechanically and thermally as annealed glass of the same thickness. When broken it exhibits a breakage pattern that is closer to the regular breakage pattern of annealed glass. (Adjacent picture of heat strengthened break pattern)
Heat strengthened glass is generally specified when there is a need to have thermal shock protection because the glass is exposed to uneven heat sources, shadows or when the heat absorption characteristic of the glass puts it at risk of thermal breakage. Heat strengthened glass has a lower visual distortion level than fully tempered glass and imparts significant additional strength when incorporated into laminated glass compositions. Heat strengthened glass is not a safety glass under the safety glazing codes.
Evertemp tempered Glass complies with ANSI Z97.1, BS 6206:1981, CPSC 16CFR1201 CAT 1 & CAT 2, ASTM C1048 -97b and CAN/CGSB -12.1-M90.