Hardness is one of the important indicators to measure the quality of silicone. Generally speaking, the higher the rubber content, the lower the hardness. The hardness of silica gel mainly adopts the Shore hardness standard, and the tester also uses the Shore hardness tester. The hardness ranges from 0 to 100 degrees. According to the function of the product, the use of hardness is also different. Silicone products have different hardness according to the process, and there are two processes of liquid and solid.

1. Liquid silicone technology can be used to make "low-grade" silicone rubber products, such as 0 to 20 degrees, even if you get it on hand, it is very viscous. These types of silicone products are often rare, and developing a set of liquid silicone molds is particularly expensive. For a few, it typically costs tens of thousands of dollars. Most liquid processes are done at around 10 to 20 degrees. For some silicone rubber products produced by liquid technology, the silicone products made by liquid technology are not easy to disassemble by themselves, and the edge of the product will not be smooth due to material reasons. Therefore, the liquid process is suitable for low-grade silicone products that do not require very strict self-assembly. Liquid silicone product recommendation: silicone pacifier

2. Solid-state technology. At present, the minimum softness of solid silica gel technology is about 30 degrees, and the highest degree is 80 degrees. Although it can reach a higher degree, the failure rate is too high, and the product is very brittle, so it is not easy to dismantle it by itself. Therefore, the optimum hardness for solid-state processes is between 30 and 70 degrees. Softer products cannot be made, but the self-unloading edge is better, and the product has a beautiful appearance without burrs.

Generally speaking, the hardness of silicone rubber products is 30-80, which is also a common silicone gel hardness and is suitable for most silicone products. The toughness and elasticity of silicone products are very good. Because the external force is not easy to deform, there will be a layer of greasy substance, so the touch will be very smooth.

About silicone rubber, please check the details:
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