I know generally the best insulator is empty space so most insulation materials are just trying to trap as much air as possible while preventing convection.
That all makes sense to me but I can’t make any sense of silicone. Why is silicone such a good thermal insulator? If money wasn’t an option, would silicone make for good insulation in a house?
In: Chemistry
Are you talking about silicone caulking? As far as I’m aware it doesn’t have a lot of intrinsic value as an insulator, but what it is good at is sealing small gaps where air can move in or out of a house. It helps increase the overall insulation of the house in this way, by preventing airflow.
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