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Author Topic: Sound Dampening  (Read 8564 times)

upscope757

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Sound Dampening
« on: August 30, 2013, 03:37:52 PM »
All,

What is the best material for the money to obtain to do the sound dampening materials in the car? Hush Mat? Dynamat? Acousti-shield?

Is it worth it purchasing the form fitting kits or to buy 2x2 squares or something like that?

Thanks,
Matt
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Matt: 1967 RS/SS - L48/Powerglide - Sierra Fawn/Beige Vinyl Top, Charleston, SC

69Z28-RS

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Re: Sound Dampening
« Reply #1 on: August 30, 2013, 03:46:25 PM »
IMO, the *best material for the money* is to do what the new car manufacturers did (or do)...  they use a similar decision criteria ... to be 'good enough', but not waste $$....
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09C 69Z28-RS, 72 B 720 cowl console rosewood tint
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cook_dw

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Re: Sound Dampening
« Reply #2 on: August 30, 2013, 05:26:51 PM »
You are gonna think Im crazy but I used this and it is holding up great..  Plus I did the entire car for right at $100..  Roughly 5 rolls with do the floor, roof, doors, sail panel area & quarter areas..




Here is my 67.





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lakeholme

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Re: Sound Dampening
« Reply #3 on: August 30, 2013, 07:24:16 PM »
Great idea! Does it hold out road heat well???
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cook_dw

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Re: Sound Dampening
« Reply #4 on: August 30, 2013, 07:52:22 PM »
Sure does..  Its just like Dynamat; tar backed aluminum foil.  It reduces heat & road noise.  You can tell a difference when you shut the doors.  There is no echo or rattle.  Just solid.
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upscope757

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Re: Sound Dampening
« Reply #5 on: August 30, 2013, 10:49:51 PM »
You guys are awesome. Thanks!
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Matt: 1967 RS/SS - L48/Powerglide - Sierra Fawn/Beige Vinyl Top, Charleston, SC

upscope757

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Re: Sound Dampening
« Reply #6 on: August 30, 2013, 10:51:05 PM »
Where did you pick that up? Lowes? Home Depot?
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Matt: 1967 RS/SS - L48/Powerglide - Sierra Fawn/Beige Vinyl Top, Charleston, SC

lakeholme

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Re: Sound Dampening
« Reply #7 on: August 30, 2013, 11:56:29 PM »
Lowes has it:
Peel & Stick

I had to check it out!  Looks like this winter's project.  Thanks, Cook_DW!  ;D  ;D  ;D
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ZLP955

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Re: Sound Dampening
« Reply #8 on: August 31, 2013, 01:33:16 AM »
Anyone found any issues with these products trapping moisture/condensation? Especially in the roof area? I'm going to replace the original fibrous roof insulation, but don't want to put in something that could form a barrier to moisture, especially if it's not thick enough to act as an insulation layer.
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Tim in Australia.
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cook_dw

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Re: Sound Dampening
« Reply #9 on: August 31, 2013, 02:15:10 AM »
Use a wooden roller when applying.  Helps to use a heat gun when rolling too..  As long as moisture isn't there when applied moisture will not get between it & the metal.  If you are that concerned about moisture then use an etching primer before applying.  I just wiped the surfaces down with xylene & let dry then applied..  I also let mine sit in the sun for several hrs to make sure the tar stuck to the metal.
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69Z28-RS

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Re: Sound Dampening
« Reply #10 on: August 31, 2013, 02:33:55 AM »
Assuming it's rubber or tar based, it's effectiveness as a sound dampener has to be much more significant than it's thermal barrier capabilities.
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09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette, '60 Corvette, '72 Corvette
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan
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