Sprayable airtightness sealant with humidity-variable water vapour permeability, white


  • Time-saving and can be applied in versatile ways: spraying with an airless sprayer or AEROFIXX (compressed air), paint on
  • Reliable structures thanks to excellent adhesive properties on all standard construction surfaces
  • Covers cracks and joints of up to 3 mm (1/8") width. Larger joints can also be covered in combination with AEROSANA FLEECE.
  • For robust building components: permanent elasticity and high durability once it has dried
  • Improves surfaces: forms a bonding course between subsurfaces and subsequent coatings
  • Can be plastered/painted over, pro clima adhesive tapes can be stuck onto it
  • Flexible use in indoor and protected outdoor areas thanks to its humidity-variable sd value
  • Excellent values in hazardous substance testing, has been tested according to the ISO 16000 evaluation scheme

Areas of application

For use as a humidity-variable vapour check and airtightness layer that can be applied as a spray or using a brush on wall, ceiling and floor surfaces, such as non-plastered masonry or porous panel-form materials.

  • Also for the creation of joints to components such as windows, roofs, walls, ceilings and floors, and for panel joints on airtight wood-based panels (e.g. OSB).
  • Can also be used for strengthening subsurfaces in the case of renovation.
  • The humidity-variable diffusion resistance of this product means that it can be used on the interior and exterior of building components.
  • The sprayed-on liquid film forms a seamless, elastic air-retarding and vapour-checking protective layer once it has dried.
  • Forms a seamless, elastic airtight and vapour-checking protective layer once it has dried.

Technical specs

Main product component Modified aqueous acrylate polymer dispersion
Property Value Regulation
Colour White
Surface weight 290 g/m² ; 0.95 oz/ft² (dried, at 0.3 mm ; 13 mil thickness) EN 1849-2
Coating application 0.2 - 1.0 mm ; 8 - 39 mil - wet film
sd value 6 m (at 0.3 mm ; 13 mil thickness) EN 1931
sd value, humidity-variable 0.13 - 10.00 m EN ISO 12572
g value 30 MN·s/g (at 0.3 mm ; 13 mil thickness)
g value, humidity-variable 0.65 - 50 MN·s/g
Vapour permeance 0.9 US perms (at 0.3 mm ; 13 mil thickness) ASTM E96-A
Vapour permeance, humidity-variable 0.33 - 25 US perms EN ISO 12572
Fire rating E EN 13501-1 / 2007
Outdoor exposure 3 months
Watertightness to liquid water W1 EN 1928
Water column 2 000 mm ; 6' 7" EN ISO 811
Can be plastered/painted over Yes, and pro clima adhesive tapes can be stuck onto it
Durability after artificial ageing Passed
Installation temperature 5 °C to 60 °C ; 40 °F to 140 °F (also applies to subsurface temperature)
Drying Approx. 12 - 48 hours (at 20 °C, 65% rel. humidity) depending on subsurface and applied thickness
Temperature resistance Permanent -40 °C to 90 °C ; -40 °F to 194 °F (dried)
Coverage ~ 1.33 m²/l ; 0.42 ft²/US fl oz (≙ 0.75 l/m² ; 2.36 US fl oz/ft²), depending on subsurface and application method
Storage 5 °C to 25 °C ; 41 °F to 77 °F, closed in an airtight manner

AEROFIXX technical support videos

Here you will find tips, support and troubleshooting information on how to work with AEROFIXX.

Video gallery

Building projects with AEROSANA sealants