What is Akotherm Polyester Wool?

History of polyester wool Akotherm
Merford Acoustic Materials was the first company to introduce a refined form of polyester wool to the acoustics industry. This product was launched on the market as an alternative to traditional mineral wool, such as glass and stone wool. Because this variant of polyester wool has excellent thermal insulation and sound absorbing poperties, the name Akotherm was quite obvious. The first type of Akotherm was very basic and available at a density of 20 kg/m³, wihout any real shape.

Product description
Akotherm is manufactured from polyester fibres that come from newly produced material or from recycled plastic such as PET bottles. The exact consistency depends on the application and the product requirements. Also, during the production process, residual material (for example from cutting) are added back into the process, making Akotherm 100% recyclable! Unlike other polyester wool products, Akotherm consists of long and bonded fibres, preventing the product from tearing. This process results in a much stronger product than most other polyester wool products. Because Akotherm does not disintegrate, it has a particularly long lifespan.

Akotherm processing  
Because Akotherm does not cause an allergic skin reaction, the product is comfortable to work with and does not need to be shielded by a fleece or a textile. Akotherm can be customised to your needs on a project basis in our production facility. Think of water cut measuring, which allows for complex shapes and cutouts or simple strips in a certain size. You can also perfectly cut Akotherm to size by yourself. For this purpose, in addition to our ceramic knife, you can also consider using an electric foam saw.

Akotherm product range
The Acousticshop has a large amount of Akotherm products in stock. The types that are most commonly used are Akotherm Basic, Akotherm D40 and Akotherm SF. In addition to these stock variants, Akotherm can also be custom-made. Consider high densities up to more than 200 kilograms per cubic meter in sheet form for example, or Akotherm on rolls up to a maximum of 20 running meter. Akotherm can be supplied with or without a self-adhesive layer. Below you find the specifications of various products we have in stock.

• Akotherm Basic D20
  This Akotherm variant has a density of 20 kg/m³ and is without top layer. By post-processing the product at one side with needles, a compacted layer of 2 to 3 mm thick is obtained (goes for 25 and 40 mm types). This layer provides more strength and diminishes the chance of damage. This layer is still acoustically open, but does not protect against oil and moisture penetration. Akotherm Basic is often used as a semi-finished product. Furthermore, it can be used as thermal cavity wall insulation and as a filling for products such as acoustic visuals, panels and damper filling.

• Akotherm basic D40
  This is a product that is comparable to the Basic variant, the biggest difference being a doubling of the density to 40 kg/m³ (D40). Since the production process is slightly different from the one from the Akotherm D20, the product obtains a slightly visible wave texture on one side. The increased density results in a higher absorption value, more stiffness as well as more resistance, preventing the Akotherm D40 from slumping. These panels can be used on visible spots, for example in order to improve room acoustics.
  

• Akotherm SF
  The Akotherm Smooth Finish is the most beautiful polyester wool product on the market. A special post-processing on both sides of the panels result in a top layer with the smoothness and tightness of fleece, without nearly costing as much as fleece! Thanks to this special post-processing, Akotherm SF is ideal to cover a wall or ceiling without the need for a finishing layer. The price, quality, and absorption ratio is particularly favourable. As a result you can cover a relatively large number of square meters at a competitive price!
   
• Akotherm Edge
  A faceted Akotherm D40 variant. The angled faceted edge gives this Akotherm plate just a little more aesthetic value for applications in various rooms for reducing reverberation. The price-quality ratio of this product is also remarkable.

Additional technical specifications
Absorption values

• D20/50 mm:   NRC = 0,70; αw = 0,75 (absorption class C).
• D40/50 mm:   NRC = 0,80; αw = 0,85 (absorption class B).
• D20/100 mm: NRC = 1,00; αw = 1,05 (absorption class A).

Fire classification Akotherm Basic
EN 13501-1: 2002 fire class B, smoke number s2, drip number d0. Report no. 2006-Efectis-R0690. Smoke classes s1 and s2, does not apply to all types and thicknesses.

Questions or product samples? 
Do you have any questions about this product, or would you like to receive a product sample before ordering? Please contact us.