Vibroacoustic material Comfortmat Galaxy

Comfortmat Galaxy vibroacoustic material

Comfortmat Galaxy is a multilayer vibroacoustic material from the advanced Aerospace range, which combines effective anti-vibration properties with advanced sound insulation capability. It combines a modern vibroacoustic compound with foamed granules, a 2 mm thick sound-insulating membrane and a rigid Scale One aluminum foil with a matte finish. Thanks to this combination, Galaxy provides significant reduction of vibrations and transmitted noise through the bodywork in a single layer, while offering excellent mechanical stability. Galaxy achieves an acoustic loss factor (MLF) of 0.56 and also brings a marked improvement in sound insulation. Due to its construction it simultaneously limits resonances and helps increase the stiffness of large bodywork panels. This makes Galaxy ideal for applications with high demands on vibration and noise damping – primarily for the floor, rear wheel arches or center tunnel, but it is also suitable for doors where a significant improvement in acoustic comfort is required in a single layer. With a high adhesive strength of around 13 N/cm, Galaxy remains firmly bonded even under demanding conditions. The surface weight of 6.90 kg/m² represents a 30 to 40% saving compared to traditional two-layer applications, which is crucial especially when soundproofing electric vehicles, sports cars and anywhere the low weight of materials is a priority.

About Comfortmat Aerospace technology

Materials in the Aerospace series represent a new generation of vibroacoustic solutions that combine anti-vibration and sound-insulating functions in a single step. Unlike traditional damping layers that often focus only on suppressing vibrations or require multi-step application, Aerospace uses an advanced sandwich structure capable of effectively absorbing vibrations while significantly reducing the transmission of sound through body panels.

The core of the technology is a vibroacoustic layer with foamed granules – light elastic particles with a bulk density of approximately 0.02 g/cm³, evenly dispersed in a polymer matrix with a density of 1.25 g/cm³. The resulting compound has a final bulk density of 0.58 g/cm³, which allows achieving a high level of damping without a significant increase in weight. The combination of two different acoustic environments – a heavy matrix and light, resilient granules – increases the ability to absorb and scatter vibrations across a wide frequency spectrum. This structure also contributes to improved sound insulation, including in the key low-frequency range.

The Aerospace technology thus offers an exceptional performance-to-weight ratio, which is a main parameter especially for electric vehicles, sports cars and professional soundproofing where every extra kilogram is undesirable. The materials exhibit an acoustic loss factor (MLF) up to 0.62 (for Comfortmat Zenith) in the -10 to +40 °C range, which is at or above the level of the most effective anti-vibration materials on the market. High adhesive strength in the range of 11 to 16 N/cm (depending on the material type) ensures perfect bonding even on vertical or curved surfaces without the risk of detachment.

In addition to acoustic parameters, Aerospace materials also have a significant impact on body stiffness. Bend strength tests show that, for example, the Galaxy and Zenith models increase resistance to panel deformation even more than common anti-vibration materials – thus contributing to the mechanical stability and durability of the entire part. Of course, they also feature low water absorption (below 0.7%) and resistance across a wide temperature range – both in extreme heat and cold.

Main features

• Combines anti-vibration and sound-insulating effects in a single layer, without the need to combine multiple materials.
• With an overall thickness of 7 mm and a surface weight of 6.9 kg/m² it is ideal for applications focused on high effectiveness.
• The vibroacoustic layer with foamed-granule technology in a polymer matrix ensures effective vibration damping and noise attenuation even at lower weight.
• A 2 mm thick acoustic membrane significantly increases the sound-insulating effect. 
• The Scale One aluminum foil with a matte finish ensures stability, protection against mechanical damage and increased transfer of damping energy.
• The acoustic loss factor (MLF) reaches 0.56, corresponding to top anti-vibration materials.
• Significantly reduces resonances of body panels, thereby improving interior acoustic comfort.
• Contributes to increased stiffness of sheet metal parts and reduction of vibrations in critical frequency bands.
• Features high adhesive strength of approximately 15 N/cm, ensuring reliable application even on vertical or curved surfaces.
• Water absorption below 0.7% ensures long-term resistance to moisture and risk of degradation.
• Resists long-term and short-term temperature stress (-40 to 90 °C), stable even in extreme conditions.
• Non-flammable composition meets requirements for increased safety of interior and engine bay applications. 
• Weight savings of up to 40% compared to common two-layer applications – ideal for sports and electric vehicles.

Material composition

Comfortmat Galaxy uses a revolutionary multi-component construction that combines the advantages of several layers into one compact whole. Each of these layers fulfills its specific function – from absorbing vibrations, limiting noise transmission, to surface stability and protection. Thanks to this, Comfortmat Galaxy is able to offer comprehensive effectiveness without the need for additional layering or using multiple types of materials.

• Vibroacoustic layer (5 mm)
  The base self-adhesive component made of a polymer matrix with foamed elastic granules, providing effective vibration damping across a wide frequency range.

• Sound-insulating membrane (2 mm)
  A heavy composite layer applied to the surface of the core, significantly reducing airborne noise transmission.

• Scale One aluminum foil (thickness 100 µm)
  A surface layer with a matte finish that provides mechanical stability, higher transfer of damping energy into the body and resistance to damage.

How to apply

Comfortmat Galaxy is applied in a single layer directly to a cleaned and degreased metal surface. Although due to its high adhesion it is not absolutely necessary to use a pressure roller, we recommend it for perfect contact with the substrate and even transfer of the damping effect – especially on large or curved surfaces. Given the two-layer construction it is important to press the entire area precisely. Due to the high thickness of 7 mm, top MLF 0.56 and the added membrane, Galaxy is intended primarily for areas with high acoustic and vibrational load. We especially recommend it for:

• floor
• rear wheel arches
• center tunnel
• engine bay partition
• trunk floor
• doors (in cases requiring maximum effect)

About Comfortmat materials

Evaluation

• Damping materials for vehicle soundproofing Anti-vibration materials
• Damping materials for vehicle soundproofing Vibroacoustic materials
• Damping materials for vehicle soundproofing Soundproofing (noise-proofing) materials
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