Rockwool Marine and Offshore has just released a marine acoustic foil, which is part of a sound absorption system specifically designed for engine rooms, cargo pump rooms and similar applications.
Traditional insulation solutions consist of an aluminium-foil or steel plate finish that provide a good solution for fire protection and oil contamination prevention; however these surface materials reduce the otherwise excellent noise absorption properties of the insulation behind them.
Rockwool marine acoustic foil is a strong, thin and durable film, which is resistant to oil/oil mist, water and most other substances expected to be found in the environment of the engine room. The film, which covers the Rockwool insulation and is then covered by a perforated steel plate, has been tested for surface flammability, according to IMO resolution MSC.61(67), annex 1 part 5 and IMOres 653(16), by the Danish Institute of Fire Technology.
The result is in full compliance with SOLAS. To obtain the optimal sound properties the film must be fitted loosely with a small gap in between the film and the insulation.
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