Epichlorohydrin Copolymer Rubber (ECO)
ECO rubber is a thermoset elastomer or rubber material. It has a moderately high ductility among the rubber materials in the database. The graph bars on the material properties cards below compare ECO rubber to other rubber materials (top) and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Compressive (Crushing) Strength
21 MPa 3.0 x 103 psi
Elastic (Young's, Tensile) Modulus
0.0075 GPa 0.0011 x 106 psi
Elongation at Break
440 %
Poisson's Ratio
0.49
Shear Modulus
2.5 GPa 0.36 x 106 psi
Tensile Strength: Ultimate (UTS)
16 MPa 2.3 x 103 psi
Other Material Properties
Density
1.5 g/cm3 91 lb/ft3
Maximum Temperature: Mechanical
130 °C 260 °F
Thermal Expansion
650 µm/m-K
Common Calculations
Stiffness to Weight: Axial
0.0029 points
Stiffness to Weight: Bending
4.5 points
Strength to Weight: Axial
3.0 points
Strength to Weight: Bending
9.5 points
Followup Questions
Further Reading
Rubber Formulary, The, Peter A. Ciullo and Norman Hewitt, 1999