Why bubbles appear in the middle of the laminated glass

Why Bubbles appear in the middle of the laminated glass

1. The temperature of the glass laminated oven rises too fast, and the EVA film at the edge of the glass will melt first, sealing the edge of glass, causing the air to be unable to be discharged and then causing bubbles.

2. The EVA interlayer film used in tempered glass is too thin, and the amount of EVA interlayrer film is not enough to meet the unevenness of the tempered glass, resulting in bubbles.

3. The gap in the insert material is too large, and the EVA film used is too thin to fill the gap, causing bubbles.

4. When the temperature is high in the glass laminating furnace, the EVA film will become thinner and generate bubbles, especially when it is attached to the insert layer.