G GuardIma
THE PROCESS
The excellent properties of G-GUARD® safety glass result from the special production process.
The glass is heated to 570°C for a couple of minutes and then chilled with cold air. This process creates a state of stress in the glass. The core of the pane is under tensile stress and the surface under compressive stress.

Ping guardEN
Ping guardEN2G-GUARD® HAS THREE OUTSTANDING PROPERTIES

1.    It has four to five times higher tensile bending strength than float glass. Consequently, this glass can bear much higher tensile or blunt impact stresses.
2.    Its resistance against changing temperatures and against high temperature differences within the pane is significantly increased.
3.    If G-GUARD® breaks upon overstressing, it is less dangerous, since the pane is shattered into tiny pieces with blunt edges.

PHYSICAL PROPERTIES 

Translucency, thermal expansion, sound insulation, resistance to pressure, modulus of elasticity and chemical properties correspond to those of float glass.

RESISTANCE TO IMPACT AND SHOCK

G-GUARD® is resistant against shocks for deformable objects, according to EN 12600 (pendulum test for glass at buildings). According to the application, a respective glass thickness is determined.

TENSILE BENDING STRENGTH

The tensile bending strength is defined according to EN 12150-1, as the stress that is statically achieved in connection with a specific probability of failure and a specific load type, such as the wind, with a probability of failure of 5% and a confidence coefficient of 95%.
σ = 120MPa

TEMPERATURE DIFFERENCE EFFECTS

G-GUARD® is capable of bearing full surface temperatures up to 300°C for a short term. The resistance to failure due to temperature differences in the pane’s surface (between the centre and the edge of the pane) is ensured up to 73°C.