Acusticell Combi
Areas of application

Hoods for engines, compressors, hydraulic machines.

Transportation and vehicles
Engine room insulation for Boats, Motorcars, buses, trucks, contractor’s machinery, forest machinery.

Hospital care and large-scale kitchens

Insulation of engine rooms.

Method of use

The pieces are cut or punched out to the desired shape and carefully pressed on to the surface to be damped. When applying, the surface must be free from oil, dirt, and dust.

  Product characteristics

Acusticell Combi is a product for combined sound insulation and sound absorption.
It has a barrier mat on a soft foam distance and a sound foamed polyurethane covered with an elastic film if urethane. It is preferable
used for insulation of boat and vehicle engine rooms


* Extra ordinary sound insulation and    absorption
* Aesthetically attractive surface
* Resistant to mechanical wear
* Film is resistant to petrol and most * chemicals
* Repels liquids and moisture
* Easy to wash
* Difficult to ignite

PDF-format for printing

To insulate Noise
When the sound wave hits the wall one part of the sound energy is reflected and one part is transmitted further through the wall. A heavier wall reflects more sound energy than a lighter.
The best way of increasing the transmission loss is to apply a barrier mat at a soft foam distance to the wall. The transmission loss significantly increases, i.e. more sound energy are reflected and does not transmit through the wall.
It is important not only to reflect the sound energy but also to absorb the reflected energy. When using “Combi”, the sound reflected is taken care of by the 20 mm foam absorber.
Transmission Loss, DTL(dB)

Frekvens, Hz, Third Octave Bands
Absorption Coefficient, %
(ISO 10534)

Frekvens, Hz, Third Octave Bands
Technical data

Total thickness: 33 mm

Thickness absorber: 20 mm

Thickness Barrier mat: 3 mm

Thickness Distance foam: 10 mm

Fire class: ISO 3795, FMVSS 302

Colour: Black polyurethane

Weight Barrier: 5,5 kg/m

Delivery format: 1200x1000 mm or 1500x1000
                          (other sizes and shapes                           can be supplied on request)

  The shaping and positioning of the material is of major importance to achieve an optimal sound-dampening effect.
 SONTECH has long experience of practical noise control projects in a wide range of industrial fields. These experiences can be a valuable addition to the laboratory data given in the datasheet.
  SONTECH can also assist with advice and sound measurements for noise control and in the manufacture of customised material sets .

Designation system

Exampel of
ordering code:

Sontech NoiseControl™ - Sontech AB · Energivägen 6
SE 196 37 Kungsängen · Tel +46 8 445 50 60 · Fax +46 8 38 47 99