Silencing methods

Discussion in 'Fiberglass and Composite Boat Building' started by fallguy, Jun 10, 2020.

  1. fallguy
    Joined: Dec 2016
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    fallguy Senior Member

    C2EF6957-8CE9-4E11-86F1-5A01753948DC.jpeg I am building a detachable helm chair and riser and decided to build a detachable steps.

    The riser is on a removable cockpit platform and the steps is on 2" of the removable platform and 14" of the hull deck.

    I need the step deck separate from the helm for easier access underneath. Because they both share a common side, I will cleat the bottom of steps on the riser and the step faces. This will allow/require silencing on the cleat faces and on the edge between the helm riser and the steps.

    Any advice on silencing? I am planning neoprene and 3M 4799 adhesive.
     
  2. jehardiman
    Joined: Aug 2004
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    jehardiman Senior Member

    Silencing engine compartment noise? I'd use a marine specific engine sound damping tile. These generally have a thin metal/composite layer bonded to a fire-retardant foam. They are much more effective due to the added mass damping as well as being fire safe.
     
  3. fallguy
    Joined: Dec 2016
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    fallguy Senior Member

    sorry, no, this is silencing between a helm riser on a floating cockpit and a step that is 2" on the floating section and 12" on one of the hulls

    ...just trying to avoid squeaking or as one builder warned me, screaming
     
  4. Ad Hoc
    Joined: Oct 2008
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    Ad Hoc Naval Architect

    You try simple paint vibration/noise damping product here,
    or
    their excellent noise barriers here.
     
    DogCavalry likes this.

  5. fallguy
    Joined: Dec 2016
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    Location: usa

    fallguy Senior Member

    perfect; thank you; I am a bit nervous about relying on neoprene all the time
     
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