•   +90 (212) 265 05 58
  •   info@yortel.com.tr

Safety Glasses - Tempered Glasses


Toughening process, Involves heating and cooling treatment whereby high compressive stresses are set up at the surfaces with balancing tensile stresses in the center.

 Improves the glass strength against impact and thermal stress loads.
Keeps the original volume, chemical composition, color and clarify of the glass.
Tempered glass is approximately 5 times stronger than annealed glass against impact.
Tempered glass is appropriate for using as safety glass because it matters into small, blunt edged fragments, which reduce the risk of injury.
Certain "tempering patterns" which are only visible under some lighting conditions and distorsions within allowable bow&warp tolerances are normally accepted as an inherent and unavoidable characteristic of heat treatment and not a defect.
Tempered glass may have "spontaneous breakages" due to nickel sulphide particles inside float glass. To reduce the risk of "spontaneous breakages" Heat Soak Test is available in our facilities under EN14179 standard. The heat soak test only reduces the risk, it never eliminates.
Yıldız Cam tempering production is under EN12150, and heat strengthened production is under EN1863 standard.