7mm and 21mm

ALUTHERMO® 7mm and 21mm

 

Aluthermo® is an insulating material that works by reflection and consists of two layers separated by a honeycomb structure of air bubbles enclosed in a self-extinguishing polyethylene film, which is covered on both sides by a 30-micron thick foil of pure aluminium that has been polished and treated against oxidation.

The various layers are thermally welded together over their full surface areas.

How does it work ?

The obtained complex is semi-rigid and consists of the following successive layers:

  1. A film of pure aluminium, 30 microns thick, treated against oxidation
  2. A layer of bubbles of dry air enclosed in self-extinguishing polyethylene
  3. A layer of bubbles of dry air enclosed in self-extinguishing polyethylene
  4. A film of pure aluminium, 30 microns thick, treated against oxidation

aluthermo 7 - 21mm

The air trapped in the bubble film and polyethylene foam is dry and stable. Possible condensation is therefore always avoided within the usual range of temperatures for ALUTHERMO®.

Technical characteristics

 

ALUTHERMO® 21mm
21mm_kl
ALUTHERMO® 7mm
7mm_kl
Thickness 21 mm 7 mm
Diameter of the bubbles 30 mm 10 mm
Height of  the bubbles 12 mm 4 mm
Thickness of the polyethylene film 200 microns 150 microns
Number of aluminium films 2 2
Thickness of the outer aluminium film 30 microns 30 microns
Dimensions of the roll 1,25 x 25 m 1,25 x 25 m
Surface area per roll 31,25 m² 31,25 m²
Weight ± 620 g/m² ± 550 g/m²
Operating temperature range – 40°C to + 80°C – 40°C to + 80°C
Fire resistance classification M1 – A1 M1 – A1
Permissible load with 10% deformation 250 kg/m²
Permissible load with 20% deformation
Bursting resistance 1000 kg/m²
Emissivity 0,05 0,05
Equivalent thermal resistance See study of the university of Liege See study of the university of Liege
Impact noise attenuation
Acoustic attenuation Rrose= 27 db(A)
Rroute= 24 dB(A)
Δ Lw = 26 dB