1. Rubber has high elasticity and viscoelasticity;
2. Compared with steel materials, the elastic deformation of rubber is very large, and the elastic modulus is very small;
3. The impact stiffness of rubber is greater than the dynamic stiffness, and the dynamic stiffness is greater than the static stiffness, which is beneficial to reduce impact deformation and dynamic deformation;
4. The stress-strain curve is an elliptical hysteresis line, and its area is equal to the vibration energy (damping) converted into heat in each vibration cycle, which can be adjusted by formula design;
5. Rubber is an incompressible material (Poisson's ratio is 0.5);
6. The shape of the rubber can be freely selected, and the hardness can be adjusted by formula design, which can meet the requirements of stiffness and strength in different directions.