The main components of liquid silicone are white carbon black, 107 base adhesive, and silicone oil, which themselves are not harmful to the human body. The platinum catalyst inside the environmentally friendly silicone gel is an extremely sensitive element and should not come into contact with substances containing heavy metals such as nitrogen, phosphorus, and sulfur. Once in contact, it will consume the platinum element, leading to the phenomenon of the silicone gel not solidifying. In this case, it is necessary to use an anti toxic platinum catalyst.
In addition, it is also possible that the silicon hydrogen ratio is not suitable. It is necessary to understand the hydrogen content and vinyl content of the materials used (which need to be tested, usually using the back titration method), and adjust them within a reasonable range.
Regarding silicone rubber, please check the details:
High Strengh Liquid Silicone Rubber IOTA 28-Series
