Waxes play a crucial role in PVC processing by promoting lubrication, melt flow, and surface finish. The choice of wax depends on the application like rigid or flexible PVC and the processing technique such as extrusion, injection molding, calendaring, etc.

Functional benefits:

• Reduces melt viscosity and improves flow.
• Enhances fusion and homogeneity in rigid PVC formulations.
• Improves gelation by reducing internal friction between polymer chains.

• Forms a protective layer on metal surfaces (extruders, molds) to prevent sticking.
• Enhances mold release and surface finish.

• Particularly beneficial in rigid PVC profiles and sheets where smooth surfaces and gloss are needed.

• Helps reduce shear heating and degradation by controlling friction.