Oval Tempered Glass is actually a kind of pre-stressed Glass. To increase the strength of Glass, a chemical or physical method is usually used to form compressive stress on the surface of the Glass. When the glass is subjected to external force, it first counteracts the surface stress, therefore, the bearing capacity is improved, and the wind resistance, cold and heat resistance, and impact resistance of the glass itself is enhanced. When choosing Oval Tempered Glass, you need to examine its quality.

Oval Tempered Glass is made by cutting ordinary annealed Glass to the required size, heating it to a near softening point, and then cooling it quickly and evenly. The tensile strength of the toughened glass is more than 3 times that of the latter, and the impact strength is more than 5 times that of the latter. It is this feature, the stress signature, that is the hallmark of the Oval Tempered Glass, which can be viewed through a polarized light plate with colored stripes on the side of the Glass, and on the surface of the Glass, you can see the black and white spots. Polarizers can be found in the camera lens or glasses, watch the adjustment of the light source, so it is easier to observe. The minimum requirement for Oval Tempered Glass is to ensure that the product has a 3C mark on the certificate, and when we look at the Glass with polarized sunglasses, the Oval Tempered Glass should be striped in color, it also has bl specks to the side when viewed with the naked eye; finally note the curvature of the Oval Tempered Glass, which is not as flat as regular Glass, but rather concave and convex, with a certain curvature on the longer sides.

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