Closed-Cell Polyurethane Foam

Closed-cell polyurethane R thermal resistance: approximately 4.7-5.2/10 cm.
Application: outdoor and indoor walls, ceilings, roofs, foundations, window installation
Closed-cell foam is characteristic of twice higher thermal resistance in comparison to cheaper insulation materials such as mineral wool, cellulose, polystyrene, or open-cell foam.
Low thermal conductivity of this foam enables saving the useful space, because the thermal insulation layer can be twice thinner in comparison to heat-insulation using alternative heat-insulation materials. If sprayed on correctly, it ensures excellent tightness, moreover, it does not absorb moisture and can serve as moisture and vapour insulator. Thanks to high density, closed-cell foam adds structural strength to walls or roof. This foam is particularly useful for insulation of complex structural units, joist junctures, roof and overlay joints.

Characteristics of closed-cell polyurethane foam:


 Closed-cell content (in accordance with ISO 5490)

 CCC4 in accordance with EN 14315 ≥ 90%

Thermal conductivity (value in accordance with EN 12667 and EN 12939

0.012 – 0.025 W/m x K

Water resistance (in accordance with EN 12087)

Long-term water absorption, water absorption < 2%

Rate of resistance to water vapour (µ) (in accordance with EN 12086)

Average permeability 25 < µ < 150

Resistance to air flow

Complete tightness

Compressive strength (in accordance with EN 826)

≥250 kPa

Resistance and rigidity

High resistance and rigidity, improves the structural resistance and load capacity of the elements of the building

Material density (in accordance with EN 1602)

35 – 60 kg/m³

Sound absorption rate (in accordance with EN ISO 11654)

Average sound absorption rate = 0.3

Reaction to fire according to classification (in accordance with EN 13501-1)

E; D

Foaming agent

Physical foaming agent (ozone-friendly HFC)




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