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HDPE vs. PAR

Both HDPE and PAR are thermoplastics. There are 8 material properties with values for both materials. Properties with values for just one material (21, in this case) are not shown.

For each property being compared, the top bar is HDPE and the bottom bar is PAR.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.0 to 1.3
1.2
Elongation at Break, % 2.5 to 100
50
Flexural Modulus, GPa 4.0 to 7.5
2.1
Impact Strength: Notched Izod, J/m 50 to 260
220
Specific Heat Capacity, J/kg-K 1330 to 2400
1200
Strength to Weight: Axial, points 6.9 to 17
16
Strength to Weight: Bending, points 19 to 32
31
Tensile Strength: Ultimate (UTS), MPa 24 to 80
67