How to choose tempered glass and laminated glass

Tips for choosing tempered glass:

1. Check the product's factory certificate of conformity, pay attention to the CCC mark and number, date of manufacture, specifications, skill requirements, and company name.

2. Wearing polarized sunglasses to observe glass, tempered glass should present colorful striped spots.

3. The flatness of tempered glass may be worse than that of ordinary glass. When touching the surface of tempered glass with force, there will be a feeling of unevenness. The longer edge of tempered glass will have a certain curvature. Place two larger tempered glass pieces together, and the curvature will become more prominent.

4. When viewed under light, tempered glass will have blue spots.

Tips for choosing laminated glass:

1. Look at the logo and check the certificate. Since the certification of safety glass products was opened in 2003, most of the laminated glass production enterprises in China have undergone product certification. It is necessary for enterprises to screen print or paste the 3C mark on the product body they sell, and perhaps add the 3C mark on its smallest outer packaging and accompanying documents (such as certificates of conformity). When selecting products, the first thing to check is whether there is a 3C mark, and based on the enterprise information, factory number, or product certification certificate, the purchased product should be checked online to see if it is within the mandatory certification plan of the enterprise and if the certification certificate is valid.

2. Check the appearance and quality. Check the appearance quality of the product, the laminated glass should not have cracks or delamination; The length or width of the edge should not exceed the thickness of the glass; Scratches and abrasions should not affect the use; Defects such as bubbles, impurities, or other visible opaque materials in the intermediate layer should not exceed the requirements of GB-9962 specification.