Trachoma in plastic rods?
Thread Content
May I ask, what causes pitting on plastic rods made of PE material?
There are two possible reasons: 1. The raw material contains volatile impurities such as moisture, which vaporize during processing and form bubbles that lead to sand holes; 2. The raw material contains components with a very high molecular weight, and the processing temperature is not sufficient to melt them, resulting in sand holes