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Phenolic vs. RPU

Both phenolic and RPU are thermoset plastics. There are 17 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is phenolic and the bottom bar is RPU.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 3.8
2.2
Elongation at Break, % 2.0
90
Tensile Strength: Ultimate (UTS), MPa 48
60

Thermal Properties

Maximum Temperature: Autoignition, °C 430
380
Maximum Temperature: Decomposition, °C 260
270
Specific Heat Capacity, J/kg-K 1400
1750
Thermal Conductivity, W/m-K 0.25
0.19
Thermal Expansion, µm/m-K 120
63

Electrical Properties

Dielectric Strength (Breakdown Potential), kV/mm 46
19
Electrical Resistivity Order of Magnitude, 10x Ω-m 11
13

Otherwise Unclassified Properties

Density, g/cm3 1.3
1.2

Common Calculations

Stiffness to Weight: Axial, points 1.6
1.0
Stiffness to Weight: Bending, points 40
36
Strength to Weight: Axial, points 10
14
Strength to Weight: Bending, points 23
28
Thermal Diffusivity, mm2/s 0.14
0.090
Thermal Shock Resistance, points 7.5
31