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LLDPE vs LDPE: Why Stretch Film Uses One and Not the Other

Six rolls of clear stretch film stacked in a pyramid

Quick answer: LDPE and LLDPE are both types of polyethylene, but their molecules are built differently. LDPE has long, tangled branches, which makes it soft and easy to process but not very strong when stretched. LLDPE has a straighter backbone with short, regular branches, so it stretches much further, holds tension better and resists punctures. … Read more

Recycled Content in Stretch Film: What PCR and PIR Actually Mean

Boxes wrapped in clear stretch film on warehouse shelving in a beam of light

Quick answer: PCR (post-consumer recycled) plastic has been used by a household or business, thrown away, collected and reprocessed. PIR (post-industrial recycled, also called pre-consumer) plastic is factory waste, such as trims and offcuts, that’s reprocessed before it ever reaches a customer. Both count towards the 30% recycled content line for Plastic Packaging Tax at … Read more

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