How to solve the bubbles in PVC resin tiles?

Many people always encounter the cause of air bubbles when producing and processing PVC products, so how do solve the air bubbles? In fact, we should focus on three reasons for air holes.

The first is moisture. Excessive moisture may appear in resin accelerators, stabilizers, flame retardants, lubricants, anti-aging agents, and inorganic powder fillers. If your materials have a certain storage time, Then we must focus on water.

The second is that during the plasticizing process, as the temperature continues to increase, the low melting point and volatile substances will become active first, leaving pores inside or on the surface of the product. Plasticizers, lubricants, anti-corrosion Aging agents and flame retardants are common sources of low melting point volatile substances.

The third is the agglomeration of inorganic powders. Calcium carbonate, color masterbatch, or other powders may have agglomeration problems during the powder plasticization process. Down pump.