PVC Examples of molecular weights versus K values

PVC is regarded as perhaps the most versatile thermoplastic resin, due to its ability to accept an extremely wide variety of additives Plasticizers, stabilizers, fillers, processing aids, impact modifiers, lubricants, foaming agents, biocides, pigments, reinforcements. .. 

Rigid PVC is appreciated for its rigidity at room temperature, low price, chemical resistance except to certain solvents, dimensional stability, easy welding and joining, resistance to weathering for well-optimized compounds, possibility of transparency, food contact, fireproofing. 

Plastisols allowing the use of particular liquid-state processing techniques casting, roto-moulding, dipping, coating... 

PVC by itself cannot be processed, it must be compounded with at least a stabilizer, a lubricant and, if flexible, a plasticizer. 

---