1. viscosity
Explanation of technical terms: the volume characteristics of anti flow of liquid, quasi liquid or quasi solid substances, that is, the internal friction or internal flow resistance between molecules when flowing under the action of external forces. Generally, viscosity is directly proportional to hardness.

2. Hardness
The ability of a material to partially resist hard material pressing into its surface is called hardness. Silicone rubber has a shore hardness range of 0 to 80, which gives designers full freedom to choose the required hardness to best achieve specific functions. Various intermediate hardness values can be achieved by mixing polymer substrates, fillers and additives in different proportions. Similarly, the time and temperature of heating curing can also change the hardness without destroying other physical characteristics.

3. tensile strength
Tensile strength refers to the force required on each range unit to cause tearing of a rubber material sample. The tensile strength range of the vulcanized silicone rubber is between 4.0-12.5mpa. The tensile strength of fluorosilicone rubber is between 8.7-12.1mpa. The tensile strength range of liquid silicone rubber is between 3.6-11.0mpa.