The hardness of silicone is an adjustable range, which depends on the formula and production process of silicone. Generally speaking, the hardness of silicone can be measured by a Shore durometer, and its hardness value is usually between 0 and 100 degrees (there is also a saying that the hardness of silicone raw materials can reach 0-90 degrees, while the hardness of liquid silicone is 0-20 degrees).
The hardness of silicone can be adjusted according to application requirements. Softer silicone materials have better flexibility and elasticity, and are suitable for occasions that require high flexibility and tensile resistance, such as seals, shock pads, etc. Harder silicone materials have higher rigidity and wear resistance, and are suitable for occasions that need to withstand greater pressure and wear, such as electronic product shells, buttons, etc.
It should be noted that the hardness of silicone is not absolute, but is affected by many factors, such as the formula of silicone, cross-linking density, filler type and content, etc. Therefore, when choosing silicone materials, it is necessary to choose the appropriate hardness range according to the specific application requirements and performance requirements.
In addition, it should also be noted that there is a certain relationship between the hardness of silicone and other physical properties (such as tensile strength, tear strength, wear resistance, etc.). Generally speaking, silicone materials with higher hardness tend to have higher tensile strength and tear strength, but may also sacrifice certain flexibility and elasticity. Therefore, when selecting silicone materials, it is necessary to consider various performance factors comprehensively to meet specific application requirements.