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POM-C vs. PAR

Both POM-C and PAR are thermoplastics. There are 13 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is POM-C and the bottom bar is PAR.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.8 to 9.7
2.0
Elongation at Break, % 3.0 to 65
50
Flexural Modulus, GPa 2.6 to 9.0
2.1
Flexural Strength, MPa 83 to 170
75
Impact Strength: Notched Izod, J/m 68 to 69
220
Tensile Strength: Ultimate (UTS), MPa 61 to 110
67

Thermal Properties

Specific Heat Capacity, J/kg-K 1130 to 1370
1200

Otherwise Unclassified Properties

Density, g/cm3 1.4 to 1.6
1.2
Limiting Oxygen Index (LOI), % 15
35

Common Calculations

Stiffness to Weight: Axial, points 1.1 to 3.3
0.93
Stiffness to Weight: Bending, points 33 to 44
35
Strength to Weight: Axial, points 12 to 19
16
Strength to Weight: Bending, points 24 to 32
31