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Author Topic: Sound Dampening  (Read 1235 times)
upscope757
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Runnin' again after 27 years...

upscope757
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« on: August 30, 2013, 10:37:52 AM »

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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« Reply #1 on: August 30, 2013, 10:46:25 AM »

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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Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
cook_dw
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« Reply #2 on: August 30, 2013, 12:26:51 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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Darrell Cook

1967 LeMans Blue SS/RS L35 clone
1968 Rallye Green SS L78 - unrestored original
1968 Matador Red Z28
lakeholme
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« Reply #3 on: August 30, 2013, 02:24:16 PM »

Great idea! Does it hold out road heat well???
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Phillip
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Planning 2016 Sentimental Tour, AACA (and restoring a 40 Buick Special for it)
AACA Southeastern Division Spring Meet Chair
"Charlotte AutoFair, presented by the Hornets Nest Region, AACA, is the largest and greatest Collector Vehicle Event in the Southeast USA."
cook_dw
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« Reply #4 on: August 30, 2013, 02:52:22 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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Darrell Cook

1967 LeMans Blue SS/RS L35 clone
1968 Rallye Green SS L78 - unrestored original
1968 Matador Red Z28
upscope757
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Runnin' again after 27 years...

upscope757
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« Reply #5 on: August 30, 2013, 05:49:51 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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upscope757
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« Reply #6 on: August 30, 2013, 05:51:05 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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« Reply #7 on: August 30, 2013, 06:56:29 PM »

Lowes has it:
Peel & Stick

I had to check it out!  Looks like this winter's project.  Thanks, Cook_DW!  Grin  Grin  Grin
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Phillip
HNR-AACA, Senior Master
Planning 2016 Sentimental Tour, AACA (and restoring a 40 Buick Special for it)
AACA Southeastern Division Spring Meet Chair
"Charlotte AutoFair, presented by the Hornets Nest Region, AACA, is the largest and greatest Collector Vehicle Event in the Southeast USA."
ZLP955
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« Reply #8 on: August 30, 2013, 08:33:16 PM »

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 - 04A VN '69 z/28 69-69 715 ex-E/MP
cook_dw
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« Reply #9 on: August 30, 2013, 09:15:10 PM »

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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Darrell Cook

1967 LeMans Blue SS/RS L35 clone
1968 Rallye Green SS L78 - unrestored original
1968 Matador Red Z28
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« Reply #10 on: August 30, 2013, 09:33:55 PM »

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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Gary W.  /  69Z28-RS, 72 B 720 cowl console rosewood all tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe (2), 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55 Nomad, '57 Nomad, '57 B/A Sedan
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