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Acoustic Cotton Wool

Cotton Insulation & Sound Absorber

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Acoustic Cotton Wool is the 'green' alternative to traditional materials such as mineral wool and rock wool. Acoustic Cotton Wool consists of 90% recycled textile (cotton) fibres supplemented with polyester fibres. Some areas of application of this product; cavity filling (acoustic and thermal insulation) for walls and floors, thermal insulation for motorhomes and as acoustic filling for absorption panels.

More information
Variant SKU Dimensions (mm) Colour Price incl. tax Stock Qty m2
D55/40 W1392 1000 x 600 x 40 Blue
123 pcs
(excl. tax: £0.00)

Suitable for:
Filling acoustic panels and bass traps, thermal and cavity insulation.

Less suitable for:
Aesthetic-acoustic applications (reducing reverberation), to improve the acoustic in a room take a look on the acoustic panel page.

Volume discount

What it is and does:
Acoustic Cotton Wool is made from recycled textiles, such as clothing that has been fiberized and supplemented with polyester fibres to obtain a flat sheet. The result is a soft, woolly and shape-retaining absorption and insulation material. Acoustic Cotton Wool is used to absorb sound, for example as filling in acoustic absorption panels and as thermal insulation material in retaining walls or in new construction as cavity filling. This product is an ideal alternative to traditional mineral wools (glass and rock wool). Acoustic Cotton Wool is skin-friendly; it does not itch and therefore does not irritate.


Acoustic Cotton Wool has a firm density of 55 kg/m³ and is used in situations where the product is not visible, some applications are:

  • Houses
  • Acoustic and thermal insulation in cavity walls or as filling between wooden floors and walls.
  • Yacht and Shipbuilding
  • Between the frames of the ship's hull as thermal insulation and filling of cavities.
  • Panel filling
    As an absorbent filling for the production of acoustic absorption panels, walls and screens (see also our tips page).
  • motorhome construction
  • As thermal insulation behind wall panelling and headliner.

Acoustic Cotton Wool has some unique properties, such as the material is particularly durable and consists of 90% recycled textile (cotton). It is just as friendly to the skin as clothing, and thanks to excellent sound-absorbing and thermal properties this product is particularly versatile in use. The material does not generate dust, contains no chemical binding agents and is 100% recyclable. Other properties of Acoustic Cotton Wool are:

  • Dimensions 1000 x 600 x 40 mm.
  • Absorption values: D55/40 mm: NRC = 0.95; αw = Absorption class A.
  • Fire classification: EN13501-1. Class B/S1/D0.
  • Heat-resistant: -30°C to 120°C.
  • Dimensionally stable, does not collapse.
  • Density: 55 kg/m³.
  • Colour: Mixed blue
  • Not self-adhesive, to be mounted with Stauf Extreme Tack.
  • Tolerance dimensions: max. 10%.

Assembly Tips
Acoustic Cotton Wool does not collapse as long as it is clamped, but if you want to mount it somewhere, use Stauf Extreme Tack. On a surface with an open structure, such as other wool or textile products, use two-sided contact adhesive. Acoustic Cotton Wool can easily be cut to size with a sharp knife.

Product sample
Would you like to receive a sample? Just fill in the contact form and we will send you a sample, free of charge.

Akoestiekwinkel is part of Merford, which has specialized in sound and noise control in construction and industry for over 35 years. By listening to our customers' problems, together with our years of expertise, we can provide the right advice for controlling noise in vehicles, boats and yachts, homes and studios. On our website we share this knowledge and guide you to the right solution.

the advantages of Acousticshop

  • Great expertise, the right advice

  • Reliable quality

  • Fast delivery time

  • Extensive range

  • Over 40 years of experience

  • Solutions for business & private use

  • Come visit us in our Acoustics shop

    Akoestiekwinkel is since 2004 the specialist in solving noise problems of consumers (in the Netherlands and Belgium). Our goal is to create a comfortable living environment by controlling annoying and harmful noise. The experience of sound is subjective. We want to make sound pleasant. In one situation this means as little sound as possible, preferably total silence. In the other case, good acoustics to make music sound optimal, for example.

    We have an extensive range of solutions in the area of sound insulation and acoustics that are available from stock. Quality comes first. Our products are extensively tested and certified. Their performance is proven and easy to compare with other products. Our range is continuously expanded with new solutions.

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