The board foam is torn in a jagged manner on both sides

The board foam is torn in a jagged manner on both sides

In the production process of XPS, EPS, and PET insulating foam board, the appearance of air channels in extruded boards is a common issue we encounter. For this, we have provided corresponding solutions for different causes.

1. The temperature on both sides of the mold is low: Increase the temperature on both sides of the mold.

2. There are impurities on both sides inside the mold: Temporarily increase the mold temperature to expel the impurities. Once all the impurities are expelled, adjust the mold temperature to the appropriate level.