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Kiilto Airblock Coat

A one-component, water-based, solvent-free liquid sealant. Can be applied with a high-pressure sprayer or roller on vertical, horizontal and ceiling surfaces.

Special features

  • a very elastic sealant coating against air leakages
  • liquid, paintable
  • for sealing walls and ceiling
  • for sealing wall, floor and ceiling junctions as well as joints in interior areas


A sprayable and rollable, very elastic, ready to use sealant against air leakages. For interior use. Excellent adhesion to various types of substrates. Easy to apply. Suitable for vertical and horizontal junctions as well as walls and ceilings. Suitable for unheated interior areas.


Approx. 1kg/m²

Package Size

EAN Code

15 kg/12,3 l 6411512707150
Package Size 15 kg/12,3 l
EAN Code 6411512707150


SBR hybrid


A paintlike gel

Density/specific weight



approx. 8.5



Bond strength

Different substrates: Concrete: 2.4MPa Coarse levelling compound: 1.2 MPa (Kiilto 70)
Smooth levelling compound: 1.7 MPa (Kiilto TopPlan)
Wall plaster: 2.8 MPa (Kiilto CR DF)
Brick: 1.2 MPa Plywood: 1.1 MPa
Stainless steel (metal): 1.9 MPa
Aluminium: 2.3 MPa
Kiilto Block: 3.2 MPa
Kiilto Hydrablock: 2.8 MPa
Sandlime brick, chipwood and gypsum board: The adhesion exceeded the substrate strength.

Water vapour permeability

Sd = 20 m
Vapour permeability (EN ISO 12572:2001 condition A)


Approx. 20,000 MPa

Classifications and certificates


Application temperature

+15–25 °C

Package sizes

15 kg / 12,3 litraa

Frost resistance


Temperature resistance when dry

-20...+70 °C


Approx. 1kg/m²

Crack bridging ability

2.2 mm (EN 1062-7 (mod))

Layer thickness

approx. 0.4 mm


Can be stored above + 1 °C, in a tightly sealed original container max. 1 year.

Instructions for use

Stir the product before use. Remove all impurities that might impair adhesion, including loose particles, dust, dirt and salt deposit. Fill in dents and holes. Apply two even coats of Airblock Coat. The second coat can be applied right after the first one (wet on wet). Follow the instructions on applied amount and consumption. Drying time depends on prevailing conditions and coat thickness. We recommend the surface to be coated (e.g. paint). When uncoated, the product’s resistance to mechanical wear and UV light is limited.

Kiilto Airblock Coat can be used with Kiilto Butyylinauha tape or Kiilto KeraSafe Saumanauha sealing tape, if needed.

Tools: a roller or sprayer

Sprayer specifications: a piston pump or membrane pump, suitable for normal latex, spray nozzle size 0,017" - 0,019”, pressure 160–180 bar.

Environment and safety

Avoid unnecessary skin contact and exposure with the fresh product, use safety gloves. Refer to the material safety data sheet. For more information about the product and package disposal, visit

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