- Tempered glass is obtained by hardening via heat treatment; tempering takes place by heating the sheets up to a temperature of 640° and rapidly cooled by jets of air.
- This process cools the surface layers, causing them to harden, which is why tempered glass is about six times stronger than floating glass. float.
- Due to its greater strength, tempered glass is used for the construction of elements without a load-bearing structure, such as glass doors, shower boxes, parapets, balustrades and roofing.
- It is also considered a "safety glass" as, in addition to being more robust, it has a tendency to break into small blunt pieces that are not dangerous.
In order to reduce the risk of breaking the tempered glass due to the presence of nickel sulphide inclusions, it is recommended to subject the tempered glass to a Heat-Soak-Test heat treatment.