Materials

PVC (Polyvinylchloride)

PVC is one of the oldest and most commonly used thermoplastic materials. The material is a colorless polymer of vinyl chloride. PVC can have numerous properties, and the characteristics can be altered by the use of additives such as stabilizers, lubricants, softeners, pigments, fillers, or static agents. PVC offers similar properties to ABS at a slightly reduced cost — however, the appearance of PVC cannot come close to ABS. In its plastic phase, PVC is corrosive to molds and molding machines. In its solid phase, PVC is non-corrosive.

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Typical Properties

Tensile Strength10,000-12,000 psi
Flexural Modulus350,000-600,000 psi
Impact Strength.8-1.4 ft-lb/in notched izod
Max Temperature120°-170° F
Chemical ResistanceFair to Good

Applications

  • Medical and healthcare products
  • Automotive applications
  • Household items
  • Electronic extruded wire covering

Advantages

  • + Wide range of flexibility
  • + Flame retardant
  • + Dimensional stability
  • + Low cost

Disadvantages

  • − Attacked by several solvent types
  • − Limited thermal capability
  • − Overheating may cause harmful vapors
  • − Stained by sulfur compounds
  • − Higher density than many plastics
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