Understanding the Difference Between PVC and CPVC

What's the difference between PVC and CPVC?

Final answer:

PVC is a rigid polymer used in various construction materials, while CPVC is a chlorinated version with higher temperature tolerance and chemical resistance, making it suitable for hot water pipes and industrial applications.

Explaining the Difference Between PVC and CPVC

Polyvinyl Chloride (PVC) is a commonly used polymer that was accidentally discovered in 1872. It is a rigid material that finds applications in construction for items like pipes, house siding, and flooring. With the addition of plasticizers, PVC can also be made flexible for uses such as electrical insulation and waterproof fabrics.

Chlorinated Polyvinyl Chloride (CPVC), on the other hand, is a modified version of PVC that has undergone a treatment with chlorine. This treatment increases CPVC's temperature threshold and enhances its resistance to various chemicals. As a result, CPVC is often chosen for applications that involve hot water supply and industrial settings where exposure to high temperatures is common.

Both PVC and CPVC belong to the vinyl family of polymers and are frequently used in piping and insulation. It's important to note that there is a growing movement to phase out the use of these materials due to environmental concerns and the potential migration of plasticizers into the environment.

Despite being closely related, CPVC's superior characteristics make it the preferred option in situations where high temperature performance and enhanced durability against chemicals are required.