A system that combines two major processes –recycling and compounding –into one. Extrusion is a high-volume manufacturing process in which raw material is melted and formed into a continuous profile. The plastic extrusion process is a well-known technique, widely used in the polymerization industry. In the plastic extrusion, raw thermoplastic material in the form of small beads is fed from a top-mounted hopper into the barrel of the extruder. Additives such as colourants and UV inhibitors (either liquid or pellet form) are often used and can be mixed into the resin prior arriving into the hopper. In order to extrude certain materials, the temperature along the extruder must be accurately controlled in accordance with the properties of the particular polymer and the extruder. ETST carries continuous research and innovation to customize extrusion to meet your needs for all kinds of PVC profile.