The reason for foam box foaming
1. The material is uneven, the drying time is long, and the foaming occurs.
2. If there is no drying, it should be that the cooling water is less or the cooling time is short.
3, the material is not sent well, it may also be caused by the mixture of light and heavy materials.
4. If you have been in the drying room, it may be that the baking time is too long.
5. If it is just out of the mold, it is a material problem. There are mixed materials, and the degree of bonding is different.