Fibre-reinforced sealant with humidity-variable water vapour permeability, blue/black


  • Time-saving and can be applied in versatile ways: spraying with AEROFIXX (compressed air), paint on
  • Reliable structures thanks to excellent adhesive properties on all standard construction surfaces
  • Covers cracks and joints of up to 20 mm (3/4") width. Larger joints can also be covered in combination with AEROSANA FLEECE.
  • Can be plastered, painted and stuck over with all pro clima adhesive tapes
  • Can be used flexibly both in interior 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

Areas of application

For use as a spray or brush-on vapour check, airtightness or windtightness layer for wall, ceiling and floor joints, to seal penetrations and non-airtight or non-windtight subsurfaces, e.g. on foamed window joints.

  • 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).
  • Also for use as a bonding course between subsurfaces and subsequent coatings or adhesion.
  • Can be applied both in interior and protected outdoor areas.
  • Thanks to fibre reinforcement, joints and cracks of up to 20 mm (3/4") can be covered and sealed. Apply AEROSANA FLEECE to larger joints.

Technical specs

Component Modified aqueous acrylate polymer dispersion, fibre-reinforced
Property Value Regulation
Colour dark blue, when fully dry black
Surface weight 290 g/m² ; 0.95 oz/ft² (dried, at 0.3 mm ; 13 mil thickness) EN 1849-2
Coating application 0.6 - 1.4 mm ; 24 - 55 mil - wet film
sd value 3.5 m (at 0.3 mm ; 13 mil thickness) EN 1931
sd value, humidity variable 0.15 - 5.00 m EN ISO 12572
g value 17.5 MN·s/g (at 0.3 mm ; 13 mil thickness)
g value, humidity variable 0.75 - 25 MN·s/g
Vapour permeance 0.94 US perms (at 0.3 mm ; 13 mil thickness) ASTM E96-A
Vapour permeance, humidity variable 0.66 - 22 US perms EN ISO 12572
Fire rating E EN 13501-1
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
Application temperature 5 °C to 60 °C ; 40 °F to 140 °F (also applies to subsurface temperature)
Temperature resistance permanent -40 °C to 90 °C ; -40 °F to 194 °F (dried)
Coverage 1.25-2.5 m²/l ; 0.40-0.80 ft²/US fl oz (≙ 0.4-0.8 l/m² ; 1.26-2.51 US fl oz/ft²), depending on subsurface and application method
Drying approx. 6 - 48 hours (at 20 °C; 68 °F, 65% rel. humidity) depending on subsurface and applied thickness
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