Author Topic: Sound Dampening  (Read 1728 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
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 $$....
Gary W / 09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe, '70 Mach I 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

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.





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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Re: Sound Dampening
« Reply #3 on: August 30, 2013, 07:24:16 PM »
Great idea! Does it hold out road heat well???
Phillip
HNR-AACA, Senior Master
Charlotte Autofair, Sept 24-27, 2015
Southeastern Division Spring Meet Chair, April 9, 2016
Planning Sentimental Tour, June 12-17, 2016

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.
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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Re: Sound Dampening
« Reply #5 on: August 30, 2013, 10:49:51 PM »
You guys are awesome. Thanks!
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?
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
Phillip
HNR-AACA, Senior Master
Charlotte Autofair, Sept 24-27, 2015
Southeastern Division Spring Meet Chair, April 9, 2016
Planning Sentimental Tour, June 12-17, 2016

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.
Tim - 04A VN '69 z/28 69-69 715 ex-E/MP

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.
Darrell Cook
1967 LeMans Blue SS/RS L35 clone
1968 Rallye Green SS L78 - unrestored original
1968 Matador Red Z28

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.
Gary W / 09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe, '70 Mach I 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan