Polyvinyl chloride commonly abbreviated PVC, is one of the most widely used plastics for a variety of applications. The rigid form of PVC is available in sheet, rod and machined/fabricated shapes and offers excellent chemical and corrosion resistance. Specialty grades are available with enhanced heat resistance or added flexibility.
ACI offers four types of solid pvc sheet: See-thrus and three mechanical grades: Type I, Type II and CPVC. The see-thrus include clear, transparent and translucent colors. The see-thrus are intended for chemical resistant glazing and displays that require a durable material.
Types I, II and CPVC are opaque and are intended for tough industrial applications.
All of these materials offer good chemical resistance and ﬁre ratings (UL-94V-0) considered self-extinguishing. Type I typically offers the highest chemical resistance. Type II relaxes chemical resistance in return for greater impact resistance. Type II is suited for applications that require thermoforming or where the ﬁnished product is subject to shock or physical abuse. The sustained operating temperature for I and II is 140° F and CPVC is 180° F.
All of these products offer excellent chemical resistance and fire rating. Some notable differences between the products follow:
Clear PVC Type II CPVC
Light Transmission Thermoformable Higher Heat Stability
Thermoformable Can be Cold Rolled
|Test||Property||Clear PVC||Type I||Type II||CPVC|
24 hrs (%)
at break (psi)
|D256||IZOD Notched Impact (ft-lb/in)||0.48||1||18||9|
(x 10-5 in./in./°F)
Temp (°F )
at 264 psi
|D635||Fire||Self Extinguishing||Self Extinguishing||Self Extinguishing||Self Extinguishing|
All properties are generalized. Material purchased may vary. You can request specification for products purchased.