Sound-deadening material for engine compartment
- Thread starter McZube
- Start date
- Status
Best is to google sound insulation and generators and try to learn as much as you can about the subject. Thats also the best place to find the materials youll need or at least know what you want. You could also look in the local yellow pages for sound and speaker studios or repair centers, as well as under Generator service and repair. Either one should have some knowledge and access to materials you might use.
Yes. PLEASE let us know where you find a deal. I'm looking at the very same situation right now. At this moment, Lewis Marine Group looks like the winner, but I've not made the leap.
Had an h27 Cherubini and got tired of cleaning insulation dust and debris in the engine compartment. The problem was with the insulation attached to the companionway steps so I just removed it and cleaned the underside of the steps. The result was just a slight increase in engine noise which was hardly noticed from the cockpit. Never noticed any increase in heat transmitted to the cabin. Originally I meant to replace the material but soon decided I was happy without it.
I have seen quite a few generators and other equipment where the sound insulation foam totally disintegrated. I have also seen some RV generator setups that are many levels quieter that didn't use that garbage.
Two things make sound, one is physical vibration, the other is pressure, which can also be reflected. Think about that deeply and youll get some ideas. Like why a partially opened door isnt as load as one fully shut....Some RV/Bus generator installations aim to put a generator box, inside of a box, which dampens noise many levels further. Some are so quiet you can stand by them and barely hear them. Plain old pink foam works, and it doesnt disintegrate like foam. Get the aluminized stuff and you can seal up the seams with aluminum tape. Remember, air leaks allow sound through just as they do air. And two thin sheets of foam, separated by an air space or loose fiberglass, will absorb more sound than one thick sheet. Lead sheet works too.
Two things make sound, one is physical vibration, the other is pressure, which can also be reflected. Think about that deeply and youll get some ideas. Like why a partially opened door isnt as load as one fully shut....Some RV/Bus generator installations aim to put a generator box, inside of a box, which dampens noise many levels further. Some are so quiet you can stand by them and barely hear them. Plain old pink foam works, and it doesnt disintegrate like foam. Get the aluminized stuff and you can seal up the seams with aluminum tape. Remember, air leaks allow sound through just as they do air. And two thin sheets of foam, separated by an air space or loose fiberglass, will absorb more sound than one thick sheet. Lead sheet works too.
defenders Marine has several do it yourself type kits link is one example
http://www.defender.com/product.jsp?path=-1|311|302333&id=96111
- Status