What type of glass is four times stronger than regular glass due to heat treatment?

Tempered glass is created through a process of extreme heating and rapid cooling, which significantly increases its strength compared to regular glass. This heat treatment causes the outer surfaces of the glass to contract and toughen, making it four to five times stronger than untreated glass. The increased strength allows tempered glass to withstand high pressure and temperature changes, making it ideal for use in environments where safety and durability are critical, such as in shower doors, glass doors and tables, and side windows in vehicles.

Safety glass, while designed to reduce the risk of injury upon breaking, does not necessarily imply the strength characteristics achieved through tempering. Laminated glass, which consists of multiple layers of glass bonded with an interlayer, offers a different set of advantages, primarily related to its ability to remain intact when shattered, providing security and sound insulation. Insulated glass typically refers to double or triple-glazing for energy efficiency, focusing on thermal insulation rather than strength. Understanding the distinct properties of tempered glass helps in identifying its appropriate applications in the field.