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ECO Rubber vs. ZA-12

ECO rubber and ZA-12 belong to fundamentally different material chemistries. ECO rubber is a polymeric material, while ZA-12 is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 13 material properties with values for both materials. Properties with values for just one material (23, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is ECO rubber and the bottom bar is ZA-12.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 21
230 to 270
Elastic (Young's, Tensile) Modulus, GPa 0.0075
83
Elongation at Break, % 440
1.6 to 5.3
Poisson's Ratio 0.49
0.26
Shear Modulus, GPa 2.5
33
Tensile Strength: Ultimate (UTS), MPa 16
260 to 400

Thermal Properties

Maximum Temperature: Mechanical, °C 130
100
Thermal Expansion, µm/m-K 650
24

Otherwise Unclassified Properties

Density, g/cm3 1.5
6.0

Common Calculations

Stiffness to Weight: Axial, points 0.0029
7.6
Stiffness to Weight: Bending, points 4.5
24
Strength to Weight: Axial, points 3.0
12 to 19
Strength to Weight: Bending, points 9.5
15 to 20