What's the Difference between PET, OPET, EPET, PETG AND ...
The 'O' in OPET stands for oriented. PET is oriented biaxially during the 2-Step Injection Stretch Blow Moulding process. When PET is in the preform stage, the polymer molecule starts as an unbalanced chain, when the polymer is heated and stretched with a pin the molecule is oriented, or arranged, in parallel with the direction it is stretched.
Get Price