The TermoRasante Aerogel MGN (or Rasante Termoriflettente MGN) is a super-insulating thermal plaster, a thermal bridging regulator, anti-condensation, anti-mould, highly breathable lime-aerogel thermal plaster. Due to its high aerogel content offers great insulation performance in a thin form factor, saving valuable space.

Silica aerogel in a plaster form not only matches the performance of other forms of aerogel, such as thermal blankets, but it can surpass them. This occurs as a result of the Knudsen effect which makes the thermal conductivity of aerogel to decrease significantly in a small-pore environment where the nano-cavities restrict the free movement of gas particles – resulting in a better thermal insulation of the aerogel plaster than thin sheets of aerogel surrounded by large masses of free air.

Applied in just a few (5-10) millimetres the plaster can increase the surface temperature of old or new walls by 3°C to 5°C, eliminating condensation and mould. The application of a plaster also results in higher air-tightness than other forms of insulation, contributing to less overall heat losses.

This lime-aerogel plaster combines several mechanisms – excellent thermal performance, high solar reflectance and infrared emittance (the ability to reflect the existing heat back into the room) – which all work in combination, resulting in an outstanding equivalent thermal conductivity as low as λ_eq = 0.010 W/m*K, outperforming commercial expanded polystyrene foams with reflective coatings, while being highly breathable.

This thermal plaster can be used on any type of building, new or old, and it provides a building-friendly solution for the renovation and refurbishment of older buildings with solid walls.