Materials Guide

CPVC

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CPVC (Chlorinated Polyvinyl Chloride) is a thermoplastic known for its superior heat and chemical resistance compared to standard PVC. Strong, durable, and versatile, it is widely used in demanding environments where higher performance is required.

 

What is CPVC?

CPVC is produced by chlorinating PVC resin, which enhances its ability to withstand heat and corrosion. It maintains the versatility of PVC while extending its working temperature and resistance to aggressive chemicals.

Common Applications

CPVC is a reliable choice for:

  • Hot-and-cold water distribution systems
  • Industrial piping and fittings
  • Chemical handling equipment
  • Fire sprinkler systems
  • Durable profiles in high-temperature environments

Fun Fact: In 1959, CPVC was first used in hot water pipes - and many of those early installations are still in service today.

Important Considerations

Benefits

  • High heat resistance (up to ~200°F / 93°C)
  • Excellent chemical and corrosion resistance
  • Strong mechanical integrity in high-temperature environments
  • Maintains rigidity and dimensional stability under stress
  • Compatible with solvent welding and other joining techniques

Limitations

  • Less flexible than other thermoplastics
  • Higher cost compared to unmodified PVC
  • Can become brittle at very low temperatures
  • Requires proper handling & joining techniques to prevent stress cracking.

Custom CPVC Extrusion with Engineered Profiles

At Engineered Profiles, we tailor CPVC profiles for applications where elevated heat or chemical exposure demands more than standard PVC can deliver. With expertise in precision tooling and advanced extrusion processes, we ensure CPVC extrusions that maintain performance and reliability in the toughest environments.

Download the CPVC infosheet

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