Aerogel felt is a high-performance insulation material made by combining silica aerogel with fibers like glass, ceramic, and mullite through a supercritical drying process. It offers extremely low thermal conductivity, high-temperature resistance, Class A fire rating, long service life (20–30 years), and 98% hydrophobicity. Environmentally friendly and reusable, it is ideal for thermal, acoustic, mechanical, chemical, and electrical applications.