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Melamine vs. PMP

Melamine belongs to the thermoset plastics classification, while PMP belongs to the thermoplastics. There are 15 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is melamine and the bottom bar is PMP.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 7.0
1.1
Elongation at Break, % 1.0
30
Tensile Strength: Ultimate (UTS), MPa 30
24

Thermal Properties

Specific Heat Capacity, J/kg-K 1200
1750
Thermal Conductivity, W/m-K 0.5
0.17
Thermal Expansion, µm/m-K 60
120

Electrical Properties

Dielectric Strength (Breakdown Potential), kV/mm 30
28
Electrical Resistivity Order of Magnitude, 10x Ω-m 9.0
14

Otherwise Unclassified Properties

Density, g/cm3 1.5
0.83

Common Calculations

Stiffness to Weight: Axial, points 2.6
0.74
Stiffness to Weight: Bending, points 43
41
Strength to Weight: Axial, points 5.6
8.0
Strength to Weight: Bending, points 14
22
Thermal Diffusivity, mm2/s 0.28
0.12
Thermal Shock Resistance, points 5.1
13