What is the shelf life of the glass and the national standard?
Safety glass refers to the national standard of laminated glass, tempered glass, and hollow glass made with them, which especially in the laminated glass and laminated glass made of hollow glass for the best overall performance. General civil tempered glass is the ordinary glass through the heat treatment process, to improve its strength 3 to 5 times, can withstand a certain amount of external impact or temperature changes without breaking, even broken, but also the whole piece of glass into a similar honeycomb obtuse angle small particles , Not easy to hurt, and thus have a certain degree of security. Tempered glass can not be cut, need to cut the size before the steel, and "blew" characteristics.
At the same time, its PVB interlayer with sound insulation, control the performance of the sun and make it a new energy-saving, environmentally friendly features: the use of laminated glass can not only be able to penetrate the ordinary glass of 1000 ~ 2000 Hz noise, and It can block more than 99% of the UV and absorb the infrared spectrum of heat. As a new building materials in line with the performance of laminated glass is bound to play a huge role in the use of safety glass
According to the use of different, tempered glass can be divided into all-tempered glass, semi-tempered glass, regional tempered glass, flat tempered glass, curved tempered glass and other types. Laminated glass as a safety glass in the impact after crushing, due to its two ordinary glass folder folder between the PVB film adhesion, not like ordinary glass broken after the sharp pieces of wounding.
