LDPE, HDPE & PP Bags
Although both materials are polyethylene, they do have different properties. LDPE is softer, more flexible and melts at a lower temperature than HDPE. LDPE is used in sandwich bags and other types of packaging. Low cost and easy to process, HDPE is used widely in the production of plastic packaging. It’s an especially effective barrier with chemical stability, which makes it perfect for containers and bottles, particularly household and industrial chemicals.
LDPE’s toughness, flexibility and transparency means it’s usually used in packaging in film applications where heat sealing is needed.