Virgin PET resin with intrinsic viscosity (IV) range of 0.76-0.89, specifically engineered for various bottle applications including water, edible oil, hot fill, carbonated soft drinks (CSD), CSD fast reheat, and 5-gallon bottles.
The main difference between the grades is the IV viscosity of PET — intrinsic viscosity is matched to the type of bottle each application requires.
The main difference between the PET grades is the IV viscosity, which decides the type of bottle each grade is used for:
| Type | IV Viscosity (dL/g) | Bottle Type |
|---|---|---|
| CZ-302 | 0.800±0.015 | Potable water bottle |
| CZ-302L | 0.780±0.015 | Potable water bottle (Min) |
| CZ-318 | 0.830±0.015 | Oil / cosmetics bottle, APET sheet & roll |
| CZ-328 | 0.860±0.015 | CSD bottle |
| CZ-328A | 0.855±0.015 | CSD bottle (fast reheat) |
| CZ-333 | 0.800±0.015 | Hot fill bottle |
| CZ-328H | 0.875±0.015 | Gallon bottle |
Low IV (0.780-0.800 dL/g) suits thin-wall still water and hot fill bottles; medium IV (0.830 dL/g) suits oil, cosmetics and APET sheet / roll; high IV (0.855-0.875 dL/g) builds the wall strength and stress-crack resistance needed by CSD, fast-reheat and gallon bottles.
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