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PET vs. Melamine

PET belongs to the thermoplastics classification, while melamine belongs to the thermoset plastics. There are 11 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 PET and the bottom bar is melamine.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 3.5 to 11
7.0
Elongation at Break, % 2.5 to 70
1.0
Tensile Strength: Ultimate (UTS), MPa 60 to 140
30

Thermal Properties

Maximum Temperature: Autoignition, °C 410
350
Maximum Temperature: Decomposition, °C 390
350
Specific Heat Capacity, J/kg-K 1000 to 1150
1200

Otherwise Unclassified Properties

Density, g/cm3 1.4 to 1.6
1.5

Common Calculations

Stiffness to Weight: Axial, points 1.2 to 4.4
2.6
Stiffness to Weight: Bending, points 32 to 54
43
Strength to Weight: Axial, points 12 to 27
5.6
Strength to Weight: Bending, points 25 to 41
14