FLAT Plus Versatile against noise


Versatile against noise

Highly effective sound absorber with Fire Protection Plus and maximum soundproofing effect

  • Extra fine-pored thermoset acoustic foam for maximum sound absorption
  • Extraordinary heat and flame resistance conforming to fire protection class DIN 4102 B1 / C-s2, d0 according to DIN EN 13501
  • Formats: 100 x 50 cm, 120 x 58 cm, 60 x 60 cm with a flat surface in various material thicknesses
  • Available in white grey and titanium grey
  • Various possible uses, e.g. sound insulation in public facilities / buildings, offices, schools, kindergartens, restaurants

In 6 simple steps to your perfect acoustics:

white grey titanium grey
Square | 60 cm x 60 cm Rectangle | 100 cm x 50 cm Rectangle | 120 cm x 58 cm
2 cm 3 cm 4 cm 5 cm 8 cm 9,6 cm
Without | no extra mounting accessories STICKY | makes your aixFOAM self-adhesive upFRAME | the noble aluminum cassette for a flexible mounting GoodVibes | the vibration dowels for upFRAME (incl.) HANGER | the smart hanging system incl. aluminum cassette upFRAME HANGER+ | the noble hanging system incl. aluminum cassette upFRAME
4 pack 6 pack 8 pack 10 pack 12 pack 16 pack 24 pack

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Sound absorber FLAT Plus – Premium sound absorber with a flat surface

  • Sound absorber with flat surface made from Duromer acoustic foam with fire protection class DIN 4102 B1 / C-s2, d0 according to DIN EN 13501
  • High sound absorption even with relatively small material thickness
  • Extremely versatile, both for sound insulation and soundproofing
Stacked sound absorbers with flat surface and higher fire protection class

Product data

Format, surface
Rectangular panel (100 x 50 cm, 120 x 58 cm, 60 x 60 cm), flat surface
Material thicknesses
2 cm, 3 cm, 4 cm, 5 cm, 8 cm
Special sizes
Special sizes possible upon request
Thermoset acoustic foam
White-grey, titanium grey
Fire classes
DIN 4102 B1, C-s2, d0 according to DIN EN 13501

The fire classes of the aixFOAM absorbers do not only refer to the material, but always include the products including the mounting options offered by us, such as our STICKY self-adhesive kit.

More information about the fire classes of our sound absorbers is available the relevant aixFOAM knowledge article.

Fastening options

  • Without
  • STICKY. Makes your aixFOAM self-adhesive.
  • upFRAME (The frame for your absorber) without accessories
  • upFRAME with GoodVibes (Vibration dowel for decoupled wall mounting)
  • upFRAME with HANGER (The clever hanging system)
  • upFRAME with HANGER grace (The exclusive hanging system)

Assembly recommendation
Laying with shadow joint

More information about this is available in our relevant aixFOAM knowledge article about the subject "What is a shadow joint?".

- 200 °C to + 200 °C
Thermal conductivity
0,032 – 0,038 W/mK
Maximum UV resistance, does not yellow
Harmful substance information
Certified according to Eco-Tex Standard 100 as not harmful to health, mineral-fibre free, CFC-free, propellant-free
This high quality acoustic product is made on our precision machinery according to DIN 7715 Part 5 P3.

In the production (foaming) of this acoustic material different sized pores (voids) can arise. Voids are typical for the material, do not represent a quality defect and do not affect the acoustic properties of the absorber.

More information about this product is available, if required, in the accompanying datasheet. We are happy to provide you with this upon request.

For those who expect more - aixFOAM Premium sound absorbers

Our sound absorbers made of thermoset acoustic foam are the ideal solution for rooms with particularly high soundproofing and fire protection requirements. They owe their unsurpassed acoustic properties to the extremely fine, open pore structure that almost completely absorbs sound. They are flame retardant without the addition of flame retardants and thus meet many regulations to ensure fire safety in public buildings.

Stacked sound absorbers with increased fire protection class
  • Maximum sound absorption
  • Flame retardant according to DIN 4102 B1 / C-s2, d0 according to DIN EN 13501
  • Form-stable and colour-fast – no yellowing!
  • Very low weight
  • Antistatic, fibre-free and elastic

Absorption values

The measurements of the sound absorption coefficient were determined according to DIN EN ISO 354 (reverberation room) and refer to an absorber area of 100 cm x 50 cm.

Sound absorption coefficients for FLAT Plus in white-grey

2 cm
3 cm
4 cm
5 cm
8 cm
125 Hz 0,08 0,09 0,10 0,20 0,23 0,32
250 Hz 0,19 0,29 0,37 0,55 0,77 0,91
500 Hz 0,48 0,62 0,85 1,05 1,00 1,02
1000 Hz 0,80 0,83 0,89 1,10 1,11 1,10
2000 Hz 0,82 0,85 0,94 1,20 1,21 1,12
4000 Hz 0,89 0,93 1,01 1,20 1,19 1,21

Sound absorption coefficients for FLAT Plus in titanium grey

2 cm
3 cm
4 cm
5 cm
8 cm
125 Hz 0,07 0,08 0,14 0,18 0,31 0,30
250 Hz 0,14 0,18 0,31 0,47 0,71 0,76
500 Hz 0,23 0,40 0,57 0,75 0,93 0,97
1000 Hz 0,42 0,66 0,76 0,87 0,97 1,01
2000 Hz 0,65 0,80 0,85 0,95 1,01 1,00
4000 Hz 0,78 0,89 0,90 0,98 1,02 1,02
Sound absorber/ sound insulation in the reverberation chamber when determining the absorption values
Our aixFOAM sound absorbers have been tested for Hertz and pores in the reverberation chamber of renowned institutions. The sound absorption coefficients according to DIN EN ISO 354 (reverberation chamber) stated above were calculated in extensive measurements.

Profit from sound insulation directly from the manufacturer!

At aixFOAM we make sound insulation for applications in room acoustics and technical acoustics. And because we do this particularly well, we have been doing it for 65 years. Over this time we have been constantly working on the further development of our products and therefore are able to offer you highly effective sound absorbers in a modern design.

Our aixFOAM philosophy: We combine customer-oriented advice with the individual, needs-based production of sound insulation solutions. Or in other words: We help you with free advice to find the ideal sound insulation for your project and start to make your absorbers directly after receiving your order. You then receive your sound insulation directly from the factory – naturally in the best quality.

  • Use of high quality acoustic foams from Germany
  • Precision manufacturing on the latest CNC cutting machines and systems
  • Standard solutions or individual small and series manufacturing of noise insulation
  • Advice, planning, production and brokering of assembly partners
An aixFOAM employee manufactures sound absorbers for sound insulation.
Brand quality
from the manufacturer
"Made in Germany"
for you, individually
in a few days
for 65 years
soundproofing experts
ISO 9001:2015 certified
The aixFOAM acoustic experts advise you on the subject of sound insulation free of charge.

‘SH001 is a very effective sound absorber – even at small material thicknesses. It is extraordinarily heat and flame resistant and corresponds to the fire protection standard DIN 4102 B1 / C-s2, d0 according to DIN EN 13501, which applies to most public buildings. In this way it not only reduces sound, it also guarantees the necessary safety in the worst case.’

Oliver Solbach, customer advisor

We are here for you!

Do you need help or do you have any questions about the product?

Use our help area with brief answers to the most frequently asked questions from our customers.

Of course we are happy to help you with advice, free of charge.

+49 2403 / 83830 - 22
Monday to Friday
08:00 o'clock to 17:00 o'clock
Daily from 00.00 – 24.00 o'clock


This is where you can find some application pictures of our sound absorber FLAT Plus.

Sound absorber FLAT Plus
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