Sound control on-board ships to protect underwater life from vessels’ vibrations is an increasingly important concern for shippers. Presenting at the University of Rostock on February 21, Stefan Lukossek from Getzner Werkstoffe explained that flame-retardant vibration protection components in the floor construction can enhance sound control, as well as improve comfort on-board.
Getzner has developed its own flame-retardant polyurethane material for ships’ flooring, Sylomer Marine. The product has a very low static to dynamic stiffness ratio and is, therefore, much more acoustically effective. The measure creates a box-in-box system, in which the inner hull is decoupled from the outer hull. This reduces the sound level on ships and is IMO/SOLAS wheelmark-certified. “The elastic bearings are maintenance-free and depending on the floor system, make it possible to lower the weight of typical floor constructions considerably without reducing efficiency,” explained Lukossek.
“The resilient, vibration-isolating bearings reduce wear, noise and damage to the infrastructure to a minimum. Propulsion engines and wheelhouses can also be decoupled using Sylomer Marine,” continued Lukossek.
The polyurethane vibration material has been verified in multiple assessments by external testing institutes. The vibration protection is also resistant to water, salt water, oils and greases, and free from plasticisers and environmentally harmful substances. A total of five different material types for various payloads are available in the Sylomer Marine product range. The entire range has been certified to IMO Res. MSC. 307(88) FTP Code 2 and 5 fire protection standards since April 2018 and is globally approved for use as “Primary Decks Covering” in line with SOLAS regulations.