Chlorinated Polyethylene (CPE) versus Polyvinyl Chloride (PVC)

Chloraloy® is made from chlorinated polyethylene (CPE). Most other shower pan liners are made from polyvinyl chloride (PVC). There are some important differences between the two polymers.  For example, PVC must be plasticized in order to be flexible. Over time the plasticizers migrate out  of the PVC which can result in the membrane becoming brittle.

CPE is a naturally flexible elastomer and requires no plasticizers. CPE is also extremely durable and resistant to a broad range of temperatures and chemicals. CPE also has some benefits for installers. It will hold a crease so it can be folded and shaped outside the shower.

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