Why buyers encounter it
Density, blend, additives, treatment, gauge, and converting method can materially change the film. PE is not one universal specification.
Use the term carefully
This definition helps interpret a packaging conversation. It does not establish a complete film structure, machine setting, regulatory conclusion, shelf-life result, or approval for a particular application.
Research source: PC-002, PC-036. Application-specific details remain subject to manufacturer and technical review.