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Old 05-13-2018, 05:52 AM   #1
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Sound proofing question

I want to try to soundproof as much as possible my bus. I know acoustimass is pretty pricey but in the long run I think it'd be worth the money. Has anyone here had any experience using acoustimass on the dash and the floor of the bus?
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Old 05-13-2018, 08:35 AM   #2
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I want to try to soundproof as much as possible my bus. I know acoustimass is pretty pricey but in the long run I think it'd be worth the money. Has anyone here had any experience using acoustimass on the dash and the floor of the bus?
If you don't have a bus already, the best soundproofing, at least while driving, starts with a rear engine.
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Old 05-13-2018, 08:44 AM   #3
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If you don't have a bus already, the best soundproofing, at least while driving, starts with a rear engine.
Already have the bus. It's a dog nose.
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Old 05-13-2018, 09:11 AM   #4
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Already have the bus. It's a dog nose.
Some dog nose buses have significant intrusion into the cabin with a dog house, others not so much. Either way, concentrating the bulk of the expensive material on the firewall and eliminating ALL gaps would help a lot. Insulating the dog house can be tricky though. Maybe some inside and some outside.
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Old 05-13-2018, 10:34 AM   #5
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i've seen some dog houses covered with it and then carpet.


i used the aluminum roof sealer tape from HD and it worked very well. it appears the be a similar product to the dynomat.

one neat thing about it is that it goes further than you think. to quiet a large piece of metal from rattling, it just takes a small piece of the deadener to change the mass of the panel, there fore changing its resonance rattle frequency. there is more than just sound proofing going on with the products.

my dash board rattled bad, and now the noise makers got little pieces of the product, and it doesn't rattle at all.
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Old 05-13-2018, 10:51 AM   #6
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Rattle proofing stuff is an obsession I have. My dodge beater van really drives me nuts.
I sound deadened and rattle-proofed an old Honda I had. I used undercoating and lots of dynamat. Had some spray stuff called "roadkill" that worked real well.
In a bus I try not to let the rattles and creaks get to me much. I'll eventually get this dashboard of mine fixed. Gonna go full-custom since mine's so thrashed.
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Old 05-13-2018, 12:42 PM   #7
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Rattle proofing stuff is an obsession I have. My dodge beater van really drives me nuts.
I sound deadened and rattle-proofed an old Honda I had. I used undercoating and lots of dynamat. Had some spray stuff called "roadkill" that worked real well.
In a bus I try not to let the rattles and creaks get to me much. I'll eventually get this dashboard of mine fixed. Gonna go full-custom since mine's so thrashed.
And I thought you liked to "Shake, Rattle and Roll".
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Old 05-13-2018, 04:13 PM   #8
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Originally Posted by EastCoastCB View Post
Rattle proofing stuff is an obsession I have. My dodge beater van really drives me nuts.
I sound deadened and rattle-proofed an old Honda I had. I used undercoating and lots of dynamat. Had some spray stuff called "roadkill" that worked real well.
In a bus I try not to let the rattles and creaks get to me much. I'll eventually get this dashboard of mine fixed. Gonna go full-custom since mine's so thrashed.
I spent weeeeeks on my 62 Econoline. A pair of 15" subs will bring out every rattle

Dynamat for the dog house, better screws in panels, I even rubber mounted the license plate. A little dab of silicone adhesive works wonders on small rattles.

For engine noise I used dynamat but I think the rubber backed cheap hd carpet did just as much
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Old 05-13-2018, 05:34 PM   #9
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We did Roadkill under the wrong half of the bus as well as the dog box. Forgot to do the steps, but we will. With what we have done so far, along with insulation, subfloor, underlayment, and flooring, the bus is much quieter.

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Old 05-13-2018, 06:10 PM   #10
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I spent weeeeeks on my 62 Econoline. A pair of 15" subs will bring out every rattle

Dynamat for the dog house, better screws in panels, I even rubber mounted the license plate. A little dab of silicone adhesive works wonders on small rattles.

For engine noise I used dynamat but I think the rubber backed cheap hd carpet did just as much
Dynamat is over-hyped for sure. I used it and was pleased but would look for cheaper options now.
I only had one 15" in the honda with 1200 watts. The rattles were a constant battle!
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