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CAP vs. PAS

Both CAP and PAS are thermoplastics. There are 13 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown.

For each property being compared, the top bar is CAP and the bottom bar is PAS.

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, % 35 to 50
40
Flexural Modulus, GPa 1.2 to 1.9
2.8
Flexural Strength, MPa 29 to 56
110
Tensile Strength: Ultimate (UTS), MPa 28 to 45
83

Thermal Properties

Heat Deflection Temperature At 1.82 MPa (264 psi), °C 65 to 80
200
Thermal Expansion, µm/m-K 14
49

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 MHz 3.6
3.5
Dielectric Strength (Breakdown Potential), kV/mm 15
15
Electrical Resistivity Order of Magnitude, 10x Ω-m 16
15

Otherwise Unclassified Properties

Density, g/cm3 1.2
1.4
Water Absorption After 24 Hours, % 1.4 to 1.7
0.4

Common Calculations

Strength to Weight: Axial, points 6.5 to 10
17
Strength to Weight: Bending, points 17 to 23
31