1. Lightweight option:

NRC  up to 1.0

Megasorber FM50 (or FM25) to line the engine room or engine enclosure;

FM50:  NRC 1.0;

FM25:  NRC 0.82

Megasorber FM50 and Megasorber FM25 are inherently fire-resistant, exceptionally lightweight and highly effective. It has a non-combustible Soundmesh G8 facing, splash resistant to fluid, tough and durable.

The key features are shown in the schematic drawings below for Megasorber FM acoustic foam panels:

Superior acoustic performance:  Megasorber FM25 and FM50 are highly effective in absorbing engine noise.  The acoustic performance is detailed in the graph below over the various frequencies.

The FM50 and FM25 provide excellent sound absorption over engine noise frequency. The typical noise reduction is up to 10 dB(A) after installing Megasorber FM50.

Find out how Soundmesh G8 boosts the acoustic performance up to 54.5% on 25mm thick acoustic foam.

2. Super-quiet option

Megasorber C50 and CM28

Megasorber C50 and Megasorber CM28 are soundproofing absorber-barrier composites.  They are designed to effectively absorb and block the air-borne noise, specifically at a frequency range of the marine engine noise.

Megasorber C50 and Megasorber CM28 have a non-combustible Soundmesh G8 facing, splash resistant to fluid, tough and durable, as shown in the schematic drawings below:

Megasorber C50:  NRC 0.85;  Rw (STC) 28

Megasorber CM28:  NRC 0.80;  Rw (STC) 24

For more details on how Megasorber composites have been engineered to provide maximum soundproofing effect, please follow this link: Soundproofing Composites.

1. Economic option

Megasorber P50

Megasorber P50 is designed to absorb marine engine noise effectively, with a peak sound absorption between 250Hz to 2,000Hz. Megasorber P is one of the few sound-absorbing materials that is IMO compliant.

Sound Absorption of Megasorber P Series Products

(Tested to AS ISO 354-2006 Acoustics: Measurement of sound absorption in a reverberation room)

2. Super-quiet option

Megasorber P50 + Megasorber D14

Megasorber D14 is designed to reduce the low-frequency structure-borne noise effectively, and P50 is designed to absorb the air-borne noise effectively, especially the marine engine noise. Both Megasorber P and Megasorber D14 are IMO compliant.

3. Reduction of a wave slapping noise and vibration noise

• Best option: Megasorber DT2 or Megasorber D14
  Megasorber DT2 is designed for thick panels, such as aluminium panels up to 12mm thick. Megasorber D14 is designed for thin panels, such as aluminium panels up to 4mm thick and steel panels up to 3mm thick. Both products are self-adhesive for easy installation.
• Economic option: Megasorber DIS8 (or DIS8WH-DS)
  Megasorber DIS8 is self-adhesive on both sides. It provides excellent vibration damping to thick panels with complex contours or shapes. Best results are achieved when a top plate is applied, such as a steel, aluminium or Glass-fibre Reinforced Plastic (FRP) panel. Megasorber DIS8WH-DS has been specifically engineered to suit the wet lamination process of FRP structures.

Please follow this link to see how the damping materials reduce the impact noise of metal plates:  Soundproofing Damping.