Sound deadening questions

Sound deadening questions

Post by Mark Kovalcso » Fri, 29 Jan 1999 04:00:00


What is a good USCG approved silencing foam that I can buy in large
rolls?

What would be a good fuel and oil resistant *** mat that I could put
under my generator to absorb vibration?  I'm guessing 1/4" to 3/8" will
be thick enough. The generator is bolted to an oil pan that is clamped
to the floor. Would it be worth bothering to put this under the water
muffler canister as well.

FWIW My Onan 6.5KW generator is getting a full rebuild right now and
while it is out I was looking to improve the sound deadening
characteristics of engine compartment.

It appears that the cost of this overhaul is going to cut into my silent
Inverter option for the near term :(

 
 
 

Sound deadening questions

Post by Tom Ru » Fri, 29 Jan 1999 04:00:00

Quote:

>What is a good USCG approved silencing foam that I can buy in large
>rolls?

>What would be a good fuel and oil resistant *** mat that I could put
>under my generator to absorb vibration?  I'm guessing 1/4" to 3/8" will
>be thick enough. The generator is bolted to an oil pan that is clamped
>to the floor. Would it be worth bothering to put this under the water
>muffler canister as well.

Start here http://SportToday.org/
 and go to http://SportToday.org/.  You can get IsoDamp CN and
related stuff from them.  They've got an office close by
IIRC.

Tom

 
 
 

Sound deadening questions

Post by Ray Pulle » Fri, 29 Jan 1999 04:00:00


Quote:

>What is a good USCG approved silencing foam that I can buy in large
>rolls?

>What would be a good fuel and oil resistant *** mat that I could put
>under my generator to absorb vibration?  I'm guessing 1/4" to 3/8" will
>be thick enough. The generator is bolted to an oil pan that is clamped
>to the floor. Would it be worth bothering to put this under the water
>muffler canister as well.

>FWIW My Onan 6.5KW generator is getting a full rebuild right now and
>while it is out I was looking to improve the sound deadening
>characteristics of engine compartment.

>It appears that the cost of this overhaul is going to cut into my silent
>Inverter option for the near term :(

Mark,

West Marine lists several sound deadening kits in foil/foam rolls that might
work well for you. As for the bolted down vibrating stuff, this is often handled
by mounting pads that allow more flex an movement (assuming you have feet on the
generator). At my last job we used some energy absorbing pads strategically
placed on, around, and under certain parts of a very noisy piece of lab
equipment that worked amazingly well. I think the brand was ISO, but I am not
sure. Do a search under deadening, sound absorption, ISO, and whatever else you
can think of, You may be able to get a sample that would be enough to do the
job.

I'll look through my files and see what I come up with.

Ray

 
 
 

Sound deadening questions

Post by John Chal » Sat, 30 Jan 1999 04:00:00

Check on page 56 (lower right) of Overtons '99-1 catalog for fire-retardant
silencing foam.

John Chall