Laminated glass is sandwiched between two or more than two pieces of glass transparent adhesive material, by high temperature and high pressure bonding composite glass products, is a kind of has the very high resistance to impact and heat insulation sound insulation performance of safety glass products.Construction laminated glass is divided into ordinary laminated glass and tempered laminated glass, mainly USES the PVB film as an intermediary and dry hot pressing technology in production, is China's national certification and accreditation supervision and administration commission of one of the compulsory certification safety glass products.When the choose and buy products, should pay attention to the following aspects:
One , see mark certificate
Since 2003 to carry out the safety glass product certification, most of the country's construction laminated glass manufacturing enterprises have passed the certification of the product, the enterprise must in the sale of products of screen printing on the body or paste 3 c logo, or on its minimum outer packing and the attached documents (e.g., certificate) to add the 3 c mark.The choose and buy when the product first to see if there is a 3 c logo, and according to the enterprise information, factory number or product certification such as whether to see through the network to buy the products in the enterprise has passed the certificate of competence, certification is valid.
Second, see appearance check quality
Check the appearance of the product quality, no crack, degumming for laminated glass;The length or width of critical edge should not be more than the thickness of the glass;Scratch and abrasion should not affect the use of;The middle layer of bubbles, impurities can be observed in the opaque or other defects shall not be more than GB9962 standard requirement.
In use process, avoid external shocks, especially the tempered laminated glass to avoid cutting-edge mechanical shock.Take care not to scratch or to clean glass scratch, ground glass surface, so as not to affect the optical performance, safety performance and beautiful.Laminated glass in neutral glue should be used when installation, it is strictly prohibited contact with acid gel.