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Intro to Can Liners

There are many different terms used when describing can liners. Here is a glossary of the most used.


Can Liner Bottom Seals

Star Seals
Star Seal Illustration

  • Most common can liner seal available, evenly distributes trash
  • ‘Star’ seal eliminates gaps along the seal & prevents leaks
  • Maximize carrying capacity & conform to the inside of a waste receptacle

Gusset Seals

Gusset Seal Illustration

  • Flat bag, with gussets formed on the sides where the liner is tucked in
  • Have a tendency to leak from the center where the four layers of film meet two at the gusset points

Flat Seals

Flat Seal Illustration

  • Sealed on one end like a pillow case without gussets
  • Do not conform to the inside of a waste receptacle
  • Have a tendency to leak in the corners




describe the image

  • Mil (one thousandths of an inch): Term used in the measurement of LDPE or LLDPE can liners; range between 0.35 to 4.0 mil
  • Micron: Term used in the measurement of HMW-HDPE can liners; range between 6 to 24 microns




Density Types

  • LLDPE (Linear Low Density Polyethylene): Primary type of resin used in modern can liner manufacturing technology. Excellent combination of film strength, puncture resistance and tear resistance.
  • HDPE (High Density Polyethylene): Provides excellent film strength and puncture resistance, but less tear resistance than LLDPE.