1. Check the logo and certificate, and purchase products from legitimate manufacturers with the 3C certification logo. Since the implementation of safety glass product certification in 2003, most tempered glass cover production enterprises in China have undergone product certification. Enterprises must screen print or paste the 3C mark on the body of the products they sell, and perhaps add the 3C mark on their 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 company information, factory number, or product certification certificate, check whether the purchased product is within the scope of mandatory certification by the company through the internet, and whether the certification certificate is valid.

2. Due to the lack of significant differences in appearance between tempered glass covers and regular glass, some unscrupulous merchants use regular glass with the 3C logo printed on it instead of tempered glass covers for sale. Consumers can identify whether a product is ordinary glass through polarized light survey. If there are no colorful stripes or spots found through polarized light survey, it indicates that the product is ordinary glass. However, if colorful stripes or spots are found during the survey, it can only indicate that the product has undergone tempering treatment and cannot clarify whether the tempering quality is up to standard. Polarized light can be found in camera lenses or sunglasses, so pay attention to adjusting the light source during investigation.

3. Pay attention to investigating the appearance of tempered full glass. The tempered glass cover should have no defects such as bursting edges, cracks, missing corners, etc., and there should be no dense or surface scratches that affect the use of the product, with good flatness.

4. During use, efforts should be made to prevent external impacts, especially on the edges and corners of the glass. When cleaning glass, be careful not to scratch, scrape or grind the surface of the glass to avoid affecting its appearance.

5. Self explosion is a characteristic of tempered glass covers, which cannot be prevented. The industry generally believes that the self explosion rate is 0.3%. In order to prevent fragments from splashing and causing human injury when the tempered glass cover self explodes, it is recommended to add a layer of explosion-proof film on the tempered glass cover during use.

Article source: Tempered glass coverwww.yinghuade.com