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PP Homopolymer vs. PETG

Both PP homopolymer and PETG are thermoplastics. There are 13 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is PP homopolymer and the bottom bar is PETG.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 45 to 64
55
Flexural Modulus, GPa 1.5 to 7.0
2.1
Flexural Strength, MPa 41 to 100
77
Impact Strength: Notched Izod, J/m 42 to 95
77
Rockwell R Hardness 90 to 110
120
Tensile Strength: Ultimate (UTS), MPa 36 to 93
53

Thermal Properties

Glass Transition Temperature, °C 170
81
Heat Deflection Temperature At 1.82 MPa (264 psi), °C 73 to 160
69
Specific Heat Capacity, J/kg-K 1230 to 1900
1200
Thermal Expansion, µm/m-K 30 to 90
68

Otherwise Unclassified Properties

Density, g/cm3 0.91 to 1.2
1.3

Common Calculations

Strength to Weight: Axial, points 11 to 21
12
Strength to Weight: Bending, points 27 to 37
25