Silicone gel is a kind of low cross-linking density silicone rubber without filler. Silicone gel is different from ordinary silicone rubber elastomers, its appearance is transparent or translucent gel-like, its mechanical strength is very low, and its hardness is difficult to measure. In addition to the advantages of general silicone materials such as high and low temperature resistance, safety and non-toxicity, good biocompatibility, and good electrical insulation performance, silicone gel also has the properties of gelatinous substances such as vibration absorption, adhesion, and sealing.