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 approx. 200 - 400 g/m² ; 0.65 - 1.3 oz/ft², depending on subsurface and applied thickness EN 1849-2
Coating application 0.6 - 1.4 mm ; 24 - 55 mils - wet film
sd value 3.5 m (at 0.3 mm 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 thickness)
g value, humidity variable 0.75 - 25 MN·s/g
Vapour permeance 0.94 US perms (at 0.3 mm 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
Water column 2 000 mm ; 6' 7" EN ISO 811
Water tightness to liquid water W1 EN 1928
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 400-800 ml/m² ; 1.3-2.6 oz/ft², depending on subsurface and applied thickness (1 l ≙ 1 kg)
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