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Linear Low Density Polyethylene (LLDPE)

LLDPE is a thermoplastic, further classified as a polyethylene plastic. It has a fairly low density among the thermoplastics in the database. The graph bars on the material properties cards below compare LLDPE to: polyethylene plastics (top), all thermoplastics (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Material Properties


0.94 g/cm3 59 lb/ft3

Dielectric Constant (Relative Permittivity) At 1 Hz


Elastic (Young's, Tensile) Modulus

0.5 GPa 0.073 x 106 psi

Melting Onset (Solidus)

130 °C 260 °F

Common Calculations

Stiffness to Weight: Axial

0.3 points

Stiffness to Weight: Bending

28 points

Followup Questions

Further Reading

ASTM D883: Standard Terminology Relating to Plastics

SPI Plastics Engineering Handbook of the Society of the Plastics Industry, Inc., 5th ed., Michael L. Berins (editor), 2000

Modern Plastics Handbook, Charles A. Harper (editor), 1999

Plastics Materials, 7th ed., J. A. Brydson, 1999