1、 Viscosity
Explanation of technological terms: The volume characteristic of a liquid, quasi liquid or quasi solid substance that resists flow, that is, the internal friction or flow resistance between molecules when flowing under external forces. Normally, viscosity is directly proportional to hardness.

2、 Hardness
The ability of a material to resist hard objects pressing into its surface locally is called hardness. Silicone rubber has a Shore hardness range of 0 to 80, which gives designers ample freedom to choose the required hardness to best achieve specific functions. Mixing polymer substrates, fillers, and additives in different proportions can achieve various intermediate hardness values. Similarly, the time and temperature of heating and curing can also change the hardness without damaging other physical characteristics.

3、 Tensile strength
Tensile strength refers to the force required per unit range to cause a rubber material sample to tear. The tensile strength range of hot vulcanized solid silicone rubber is between 4.0 and 12.5 MPa. The tensile strength range of fluorosilicone rubber is between 8.7 and 12.1 MPa. The tensile strength range of liquid silicone rubber is between 3.6 and 11.0MPa.