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#21
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Thank you! |
#22
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I just ordered a pack of the summit house branded stuff, which per my research is actually made by Hushmat.
Have not yet installed it (planning to use it on the inside of my roof before I do my headliner), but i can say from previous experience with dynamat that this stuff is at least as good as the base dynamat product if not better. I actually think its a little thicker. Definitely a better value. 18 sheets for $99
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Ben R. 2004 GTO - the daily 1966 Olds 442 - the toy 1953 Chevy 5-Window Truck - the heap |
#23
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I'm very happy with the Thermotec product (acoustic, not thermal) in my '59 GMC for four years now. Very dense self-stick in roll form. Truck is amazingly quiet inside.
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Anybody else on this planet campaign a M/T hemi Pontiac for eleven seasons? ... or has built a record breaking DOHC hemi four cylinder Pontiac? ... or has driven a couple laps of Nuerburgring with Tri-Power Pontiac power?(back in 1967) |
#24
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A little off topic. Does the Dynamat and Thermo-Tec type stuff work as well if the adhesive cover is left on the padding simply laid in place. I was going to order up an OEM type kit that does not cover much and just lays down. For the doors, same thought I was considering just taping the edges in place.
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#25
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I use Dynamat & Dynaliner, pretty much for the same reasons others do, because I KNOW the results it will provide. If you buy bulk packs, and find shipping deals, it's not that much more than similar products. Many 'play' with the amount you get, by saying the size or number of the sheets, or by just saying something like 'door kit'. Compare sq ft and you will see the cost is even closer than you think. .
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. 1970 GTO Judge Tribute Pro-Tour Project 535 IA2 http://forums.maxperformanceinc.com/...d.php?t=760624 1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car https://forums.maxperformanceinc.com...ght=procharger Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be |
#26
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For most of the popular cars out there, Dynamat also has their custom cut kits which provide what's needed in pre-cut sheets for easy install.
You only really need 50-75% coverage depending on the panel to achieve proper damping of the metal. Covering the entire car in the stuff gets you well into the point of diminishing returns, costs you more and adds unnecessary weight. For large flat panels without bends or creases to add rigidity, try to cover about 75% of the panel. For panels that contain numerous bends and creases, you only need about 50% coverage on that panel. Remember, the constrain layer only dampens sympathetic vibrations, it doesn't knock down heat or air born noise like exhaust, tire roar etc. A note on the different materials. Thickness itself is not indicative of performance. The "mat" products are mass loaded constrain layers. What matters most is the mass of the product, not how thin or thick it is. That said, it's easier to add mass with more thickness, but the material matters, it's certainly possible to add more mass with thinner material. That goes the same for the mass-loaded vinyl layer if you are using such a product. Thickness is irrelevant, it's the mass that matters.
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-Jason 1969 Pontiac Firebird |
The Following User Says Thank You to JLMounce For This Useful Post: | ||
#27
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1967 GTO 416 5-spd streetcar 11's on HP low 10's 150 shot 1965 GTO 10-71 Littlefield high-helix retro/Bird (untuned) 8.44 @159 3500+lbs 10.5W's SOLD! 1964 421 GP-Sold 6.0 cert. Fiat bodied altered blown alcohol Pontiac IAII-Sold |
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