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Soundproofing Solutions for Power Generator Enclosures

Soundproofing Products

Air-Borne Noise Soundproofing Products

Sound Absorption foam, lightweight, fireproof for engineering applications
Megasorber FM
Inherently fire-resistant, light-weight, UV and hydrolysis resistant, excellent thermal insulation with optional fluid repellent fireproof facing.
Insulation Acoustic FG Foam
Megasorber FG range
Acoustic Foam with Fireproof Sound-Absorbing Facing and Optional Self-Adhesive Backing
Polyester Range Acoustic Insulation
Megasorber P Range
Acoustic Polyester Panel with Fireproof Sound-Absorbing Soundmesh G8 Facing

Structure-Borne Noise Soundproofing Products

Acoustic Insulation Layer Vibration Damping Sheet
Megasorber D14
Self-Adhesive Constrained Layer Vibration Damping Sheet
Fireproof Acoustic Insulation D10 Vibration Dampeners
Megasorber D10
Self-Adhesive Vibration Damping Sheet with Fireproof Facing

Power generation is a very cost-competitive industry. With engine noise levels typically about 110 dB(A), it is a challenge to reduce noise levels economically. In addition, the acoustic materials are exposed to high temperatures, potential fluid or fuel spills, engine maintenance and a high air-flow environment.

Megasorber has taken on these challenges and successfully developed a range of soundproofing products and soundproofing systems to suit various requirements.

With Megasorber's patented Soundmesh® G8 technology (U.S. Patent No. 8167085, Canada Patent No. 2674986, Australia Patent No. 2009206197), it is possible to have a fireproof, tough, durable as well as sound-absorbing material.

Megasorber FM is one of the most suitable soundproofing materials for genset enclosures:


Megasorber soundproofing systems are compact and light-weight. Typical systems consist of two key components:

  1. Megasorber FM range (or Megasorber P range) products for air-borne noise absorption, and
  2. Megasorber D14 (or Megasorber D10) for low-frequency structure-borne noise reduction. It is a 2mm thick self-adhesive vibration damping sheet.


Soundproofing Systems

1. Economical Soundproofing System

Line enclosure with Megasorber FM50 (or FM25 if space is limited). A schematic drawing is shown below:

Schematic Drawing of Soundproofing by Megasorber G8-faced Sound Absorber

The sound absorption of Megasorber FM50 and FM25 are shown below.

Graph Showing Sound Absorption of Engine Noise by Megasorber FM25 and FM50

It is evident that the FM50 and FM25 have been engineered to maximize the sound absorption of the engine noise. The test results reveal that typical noise reduction could be up to 10 dB(A) when lined with Megasorber FM50.

Find out how Soundmesh G8 boosts the acoustic performance up to 54.5%.


2. Compact Soundproofing System

Apply Megasorber D14 Vibration Damping Sheets (or Megasorber D10) to cover about 60% to 80% of the total area then line enclosure with Megasorber FM50 Sound Absorber (or FM25):

Schematic Drawing of Soundproofing by Megasorber G8-faced Sound Absorber with Vibration Dampener

The D10 and D14 vibration damping sheets are designed to reduce the low-frequency structure-borne noise effectively and the FM50 sound absorber is designed to absorb the air-borne noise effectively. In addition, Megasorber D10 and D14 increase the sound transmission loss, providing extra noise blocking-out effect, especially for engine enclosure constructed with thin and lightweight panels.

Hear how Megasorber damping materials help to reduce the impact vibration noise:


3. Super Quiet System

Line the enclosure with Megasorber DIS8 sandwich system and FM75 or Megasorber P100. This unique system has brought the noise level down to a very low level, such as 65dB(A) at 1m and so on. Please contact us for a tailored design.


The following applications highlight just a few ways Megasorber customises soundproofing solutions:

Soundproofing Lining for Power Generator Enclosure

Power Generator Enclosure with Soundproofing

Originally, glasswool and perforated metal had been used to line the enclosure. Over 24 months of operation, the genset became very noisy as the glasswool gradually eroded away. As a result, the genset needed refurbishment.

Megasorber FM25, 25mm thick acoustic foam with a fireproof sound-absorbing Soundmesh G8 facing, was specified by the customer.

With Megasorber FM25, there is no need for perforated metal or glasswool. Megasorber FM25 can be easily installed with Megasorber A200. 

As a result, our client has subsequently increased their production output as well as gained significant labour cost savings during the installation process.

Megasorber FM25 can also help you to achieve an increase in your factory output as well as cost savings in soundproofing installation.

If a lower noise level is required, then the thicker Megasorber FM50 is recommended.

With the unique Soundmesh® G8 fireproof acoustic facing, Megasorber FM50 provides excellent sound absorption at low frequencies, typically with a peak sound absorption from 250Hz to 2,000Hz.

Durable Soundproofing System for Australian Defence Force Gensets

The Australian Defence Force's gensets have very high and stringent specifications: insulation material MUST survive up to 150°C for 6 months duration. The army placed their full confidence in the proven Megasorber materials.


Australian Defence Force Power GeneratorMegasorber sound absorbing materials for Defence Force encloureDefence Force Genset Enclosure
Australian Defence Force gensets with Megasorber acoustic materials


Compact Soundproofing System for Blower Enclosure

Blower Enclosure lined with Megasorber vibration damping and sound absorption materials

Megasorber was asked to reduce a very low-frequency tonal noise from an acoustic enclosure for blowers. The enclosure was extremely bulky and heavy due to the low-frequency noise requiring a very thick glasswool to absorb such noise. The glasswool or rockwool must be covered with a perforated metal sheet, making it very expensive to construct.

Using the Megasorber 4-Fold Approach® we helped our client develop a compact and light-weight Megasorber soundproofing system (see photo on right) consisting of:

The Megasorber soundproofing solution is compact and highly effective.  Significant cost savings were achieved by reducing the enclosure size and soundproofing installation costs.


Compact Soundproofing Solution for 1,200 KVA Genset Enclosures

Measured at 115dB(A), the engine generates a high level of air-borne noise. Even with well-designed engine isolation mounts, there is still a high degree of vibration of the enclosure panels, radiating out a high level of low-frequency structure-borne noise.

The Megasorber compact soundproofing system can consist of:

noise reduction solution for 1200 KVA genset enclosuresound proofing ceilingreducing the low frequency structure-borne noise
Compact system: (1) application of damper D14; (2) application of P100; (3) typical finish