Laminated glass is made of transparent adhesive material sandwiched between two or more pieces of glass and bonded by high temperature and high pressure. It is a kind of safety glass product with very high impact resistance and certain heat insulation and sound insulation performance. Laminated glass for building can be divided into ordinary laminated glass and tempered laminated glass. It is mainly produced by using PVB film as the middle layer dry hot pressing process. It is one of the safety glass products certified by Certification and Accreditation Administration of China. When choosing products, we should pay attention to the following aspects:
Look for quality
Check the appearance of the product quality, laminated glass should not crack, degumming; The length or width of the burst should not exceed the thickness of the glass; Scratches and abrasion should not affect use; Defects such as bubbles, impurities or other observable opacity in the middle layer shall not exceed the requirements of GB-9962 standard.
In the process of use, should try to avoid the impact of external force, especially the tempered laminated glass to avoid the impact of force on the tip. When cleaning the glass, do not scratch or scratch the surface of the glass, so as not to affect the optical performance, safety performance and beauty. Neutral adhesive should be used in the installation of laminated glass. Contact with acid adhesive is strictly prohibited.
Look at the sign to check the certificate
Since the development of safety glass product certification in 2003, the majority of the building laminated glass production enterprises have passed the product certification, enterprises must sell products on the screen printing or paste 3C logo, or in its minimum packaging and attached documents (such as certificate of qualification) add 3C logo. When choosing products, first check whether there is a 3C mark, and according to the enterprise information, factory number or product certification certificate through the network to check whether the purchased products in the enterprise has passed the compulsory certification of the ability range, certification certificate is valid.
Look for quality
Check the appearance of the product quality, laminated glass should not crack, degumming; The length or width of the burst should not exceed the thickness of the glass; Scratches and abrasion should not affect use; Defects such as bubbles, impurities or other observable opacity in the middle layer shall not exceed the requirements of GB-9962 standard.
In the process of use, should try to avoid the impact of external force, especially the tempered laminated glass to avoid the impact of force on the tip. When cleaning the glass, do not scratch or scratch the surface of the glass, so as not to affect the optical performance, safety performance and beauty. Neutral adhesive should be used in the installation of laminated glass. Contact with acid adhesive is strictly prohibited.
Look at the sign to check the certificate
Since the development of safety glass product certification in 2003, the majority of the building laminated glass production enterprises have passed the product certification, enterprises must sell products on the screen printing or paste 3C logo, or in its minimum packaging and attached documents (such as certificate of qualification) add 3C logo. When choosing products, first check whether there is a 3C mark, and according to the enterprise information, factory number or product certification certificate through the network to check whether the purchased products in the enterprise has passed the compulsory certification of the ability range, certification certificate is valid.
