Strengths of CPVC – Shrinkage

Weather-induced deflection

Outdoor components such as window sills, siding, decking and fencing are continuously exposed to the elements. The daily cycles of temperature fluctuations during the day and night cause the components to expand and contract on a daily basis, leading to damage and deterioration of the components over time.

CPVC compound “Durastream” is a unique formulation technology based on decades of experience and testing, which reduces the shrinkage and flexing of components over time.

Durastream CPVC0.7-0.9%No Curvature
CPVC Other Supplier1.5-3.0%Curvature
General PVC2.0-2.5%Curvature


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