PVC Overmolding

PVC extruded products can be categorized into two types: soft goods and hard goods. Soft products are typically made from high-molecular weight PVC resin and can be easily molded using a single screw extruder. Another category is hard goods, which can be produced using either a single or twin screw extruder and are typically made from PVC resin with a relatively low molecular weight. Examples of hard goods include hard tubes, hard plates, and hard profiles.

Injection molding requires more liquid, making the process more challenging. The majority of UPVC products employ PVC resin with a comparatively low molecular weight in order to decrease the molding processing temperature. Injection molding products can be divided into two main categories: shoe and pipe fittings.

The main end product of the rolling forming process is SPVC calendered film. Medical devices such as blood transfusion bags and infusion bags are made from PVC resin and non-toxic additives in the form of rolled films.