Question: what are some characteristics of materials that are good for soundproofing?
Answer: Silicone is a good soundproofing option for tight spaces and corners. Silicone, also known as polysiloxanes has many desirable properties. It's is mostly inert, has low thermal conductivity, is resistant to water, UV rays and provide air tight insulation. Silicone has applications in soundproofing as caulk.