The popularity of linear low density polyethylene (LLDPE) is due to its higher tensile strength and superior impact and puncture resistance than its low density polyethylene (LDPE) rival. This has allowed converters to make thinner films without sacrificing strength, saving material and reducing costs. LLDPE’s good toughness relative to other products has also opened up new application areas.
However, LLDPE is not as easy to process as LDPE and it has poorer clarity. As a result, converters often use blends with LDPE to improve these properties.