Toughened Glass From Your 100% Locally owned Glass Specialists!

TempaFloat is thermally toughened safety glass manufactured by Metro Performance Glass. Toughened glass is also known as tempered glass.

TempaFloat is produced by cutting and processing sheets of glass which are then loaded into a furnace which has a bed of oscillating rollers. The glass is heated to a plastic state at around 650 degrees C.Then by computer control the glass is moved into the quench area where it is rapidly cooled by a series of high pressure air nozzles. This rapid cooling or quenching induces high compression stress in the glass surface while the centre remains in tension. Although the physical characteristics remain unchanged the additional stresses created within the glass increase its thermal and mechanical strength.

The Benefits of Tempafloat


In the unlikely event of TempaFloat breaking, it fractures into small particles, significantly reducing the risk of injury. TempaFloat is a Grade A Safety Glass in accordance with NZS 4223: Part 3 and AS/NZS 2208 "Safety glazing materials in buildings".


TempaFloat has high mechanical strength and is 4 to 5 times stronger than annealed glass of the same thickness due to the stresses induced during toughening. It also has high thermal strength when compared with annealed glass and can withstand a temperature differential of 250 degrees C. It is stable in temperatures ranging from -70 degrees C to 300 degrees C.

Mechanical Fixing

TempaFloat has high mechanical strength so can be used with mechanical fixings such as patch, spider, hinge, disc, point and countersunk fixing.


TempaFloat is much harder to break than annealed float or laminated glass; if broken it will not provide security, although often the noise of breakage can be a deterrent.


TempaFloat has the same sound control performance as normal annealed glass.

Solar Control

TempaFloat has the same solar control and UV elimination as normal annealed glass.