Toughened / safety glass definition

Safety glass has come a long way since it’s invention, it is now utilised in a variety of methods developed to suit the purpose. Tempered glass is the most widely used application, it truly does the job of protecting people who are using the environment in which it has been applied. But it’s very effectiveness has resulted in entrapment in emergency situations, the increasing use of tempered safety glass in all of its forms created the necessity to anticipate and provide a simple means of escape. Safe T Punch provides those simple mechanisms on every continent. Whatever your application for safety glass – ask Safe T Punch to complete the solution.

Thermally tempered glass is approximately four times stronger than annealed glass of the same thickness and configuration, and must comply with the requirements of EN 12150: Parts 1 & 2. When broken, it usually will break into small fragments, which are less likely to cause serious injury. The typical process to produce thermally tempered glass involves heating the glass to over 600 degrees Celsius, then rapidly cooling to lock the glass surfaces in a state of compression and the core in a state of tension as shown in the diagram. Tempered glass is often referred to as “safety glass” because it meets the requirements of the various European Building Regulations and Standards that set standards for safety glass. This type of glass is intended for general glazing, and safety glazing such as in sliding doors, building entrances, bath and shower enclosures, interior partitions and other uses requiring increased strength and safety properties. Tempered glass cannot be further processed – such as cutting, drilling, edge grinding -after toughening and any alterations, such as sandblasting or acid-etching will weaken the glass and can cause premature failure.