which one is better, silicone or silicone rubber

Silicone and silicone rubber are two materials with wide applications. So, which one is better, silicone or silicone rubber?
Silicone rubber has the advantage of good performance in high temperature resistance, low temperature resistance, and chemical corrosion resistance, which is suitable for products with large temperature changes and low requirements for appearance. At the same time, silicone rubber is widely used in the medical and food industries because it is pure, non-toxic, tasteless, and can withstand high-temperature sterilization.
The disadvantage of silicone rubber is that its hardness, strength, and transparency are relatively poor, and it is not suitable for manufacturing high-precision and transparent products.
The advantage of silicone is that it has good flexibility, elasticity, and transparency. In particular, the high transparency of silicone makes it suitable for producing various high-density products.
The disadvantage of silicone is that it is relatively expensive, and usually some organic components are added, which may cause some environmental pollution. In addition, silicone may shrink, deform, and age.