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CA vs. RTPU

Both CA and RTPU 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 CA and the bottom bar is RTPU.

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, % 25 to 30
5.0
Tensile Strength: Ultimate (UTS), MPa 30 to 37
75

Thermal Properties

Maximum Temperature: Autoignition, °C 400
270
Maximum Temperature: Decomposition, °C 250
320
Specific Heat Capacity, J/kg-K 1500
1760
Thermal Conductivity, W/m-K 0.25
0.6
Thermal Expansion, µm/m-K 14
100

Electrical Properties

Dielectric Strength (Breakdown Potential), kV/mm 15
24
Electrical Resistivity Order of Magnitude, 10x Ω-m 16
14

Otherwise Unclassified Properties

Density, g/cm3 1.3
1.1

Common Calculations

Strength to Weight: Axial, points 6.4 to 7.9
20
Strength to Weight: Bending, points 17 to 19
38
Thermal Diffusivity, mm2/s 0.13
0.32