A silicon-based foam composed mostly of air. Often called "frozen smoke" or "blue smoke," aerogels have extremely low thermal conductivity, which gives them extraordinary insulating properties. They are the lowest-density solids known on earth.
A microporous, transparent silicate foam used as a glazing cavity fill material, offering possible U-values below 0.10 BTU/(h-sq ft-°F) or 0.56 W/(sq m-°C).
A nearly transparent, very lightweight material made primarily from silica. Dubbed a " Super Material", aerogel is the world's lightest solid, weighing as little as three times that of air, and exhibiting superb insulating properties.
A microporous, transparent silicate foam currently under development for potential use as a glazing cavity fill material, offering very high thermal performance.
Aerogel is a low-density solid-state material derived from gel in which the liquid component of the gel has been replaced with gas. The result is an extremely low density solid with several remarkable properties, most notably its effectiveness as an insulator. It is nicknamed frozen smoke, solid smoke or blue smoke due to its semi-transparent nature and the way light scatters in the material; however, it feels like extruded polystyrene to the touch.