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Calorific value is a measurement of the total energy released as heat when a substance undergoes complete combustion with oxygen. Experimental results show that CPVC has a lower calorific value than PVC.
Additionally, a comparison of the ignition timing of the two materials also shows the flame resistance of CPVC: PVC starts to ignite after 40 seconds, whereas CPVC starts to ignite after 335 seconds.
The CPVC compound “Durastream” also has a low smoke emission rate.
