Material Properties Polychloroprene Rubber admin May 20, 2016January 17, 2017 Material Properties for Polychloroprene Rubber Physical specifications of materials. Materials Polychloroprene Rubber Description Density g/cc 1.425 lb/in^3 0.0515 Hardness Brinell unless specified 65(Shore-A) Tensile Strength ultimate Mpa 28 Ksi 4.06 Yield Strength MPa Ksi Modulus of Elasticity Gpa 10^6 Psi Poisson’s Ratio %Elongation at break 450 %Reduction of area Izod Impact J Ft-lb Fracture Toughness Mpa(m)^0.5 Ksi(in)^0.5 Thermal conductivity W/m-K Btu/ft-h-F Specific Heat Cpacity J/g-K Btu/lb-F Coefficient of thermal expansion 1E-6/K 1E-6/F Electrical Resistivity Ohm-cm