Toughened glass is a Grade ‘A’ safety glass produced by furnacing annealed float glass at an approximate temperature of 620oC. After a period of time in the furnace chamber, the glass moves into a quenching chamber where it is rapidly cooled by high pressure air. This ‘snap’ cooling or quenching induces compressive stresses to the glass surface, whilst the centre remains in tension resulting in a product that is 4-5 times stronger than ordinary annealed float glass.
- When broken, tempered glass fractures into small fragments. This reduces the possibility of serious injury when compared to annealed glass.
- High mechanical strength from stress-induced toughening process.
- High thermal strength when compared with annealed glass.
- Can withstand temperature differential of 250° C.
- Stable at temperatures ranging from -70° to 250° C.
- Higher mechanical strength means it can be used with mechanical fittings like Patch, Spider, Hinge, Disc, Point Fixing.