Re: Floor pan sound deadener.
[Re: poorboy]
#2713208
11/05/19 11:25 PM
11/05/19 11:25 PM
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Joined: Oct 2007
Posts: 2,808 Wisconsin
wkroncke17
OP
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OP
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I cover the complete inside of my projects with the Noico. If its rolled down tight, I can't see water getting under it unless it sits under water for some time. You trim to fit with a utility knife, peal off the backing paper, stick into place and roll it flat. There is a noticeable difference in both the inside temp, and the inside sound level. Gene Ironic Gene, just before I read your post about the Noico, I did a search on eBay and it came up. Looks like a good quality product and very reasonable. Great conversation on all of this, I appreciate it very much guys. Wally.
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Re: Floor pan sound deadener.
[Re: burdar]
#2713281
11/06/19 10:50 AM
11/06/19 10:50 AM
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Joined: Dec 2003
Posts: 22,696 Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
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I wonder how effective it would be on the floor though since my car is a convertible. I'm still going to have a lot of noise coming into the car from the convertible top. No, not really. Taking the case of being on the open road, no nearby buildings/bridges/etc, no, the only "noise" you will have come from above will be the lower frequencies, I say arbitrarily starting at 400hz? However, you would get those anyway with or without any roof/top, thru the windows/openings. Higher frequencies do not turn as well as the frequencies increase and they will simply go skyward after reflecting off the pavement. I could also make the case, it might actually be quieter (engine/exhaust) without a hard roof, in that a hard roof, will tend to reflect something back down into the interior any of noise reaching the underside of the roof. I am disregarding wind generated noise in the above discussion.. Any treatment of the underside of the roof is mainly to further deal with noise that has entered the car thru the floor and reflected back down, and to thermal insulate the roof. edit If the roof is vibrating on its own due to say road vibrations, like a drum head, that is then its own source and should resolved on its own.
Last edited by jcc; 11/06/19 10:56 AM.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: Floor pan sound deadener.
[Re: QuickDodge]
#2713462
11/06/19 06:50 PM
11/06/19 06:50 PM
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Joined: Jan 2011
Posts: 15,859 Central Florida
larrymopar360
Stud Muffin
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Stud Muffin
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Central Florida
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Maybe I'll lay down a piece somewhere and pour some water and wait, and peel back up (if I can) and see if it's damp underneath? Having moisture trapped underneath if water finds it's way into an old car scares me.
Facts are stubborn things.
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Re: Floor pan sound deadener.
[Re: larrymopar360]
#2713485
11/06/19 07:48 PM
11/06/19 07:48 PM
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Joined: Oct 2007
Posts: 2,808 Wisconsin
wkroncke17
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Maybe I'll lay down a piece somewhere and pour some water and wait, and peel back up (if I can) and see if it's damp underneath? Having moisture trapped underneath if water finds it's way into an old car scares me. Very good idea. How about on doors? Should it go on the backside of the panel or do you try to squeeze it between the bracing directly to the inside of the door skin before the window and door mechanism is in?
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Re: Floor pan sound deadener.
[Re: QuickDodge]
#2713524
11/06/19 09:32 PM
11/06/19 09:32 PM
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Joined: Dec 2003
Posts: 22,696 Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,696
Bitopia
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Back on page 1, JCC mentioned using SS exhaust pipe. I'm assuming he meant stainless steel exhaust pipe. Can someone explain why that is quieter?
I suspect most any form of insulation will reduce noise and heat in a car. A few decades back, I knew a guy who built an early 1970's Dodge custom van. He used fiberglass insulation that is typically used in building homes in the walls of the van. On the floor he had carpet with some kind of thick padding under it. He used some kind of performance mufflers that were fairly quiet, but the van definitely had a little rumble to it. (He had modified the 360.) I do not know all the details, but that van was surprisingly quiet inside and it would RUN!! The SS is only quieter IF it is wrapped, regular steel tubing cannot handle the heat well over long periods when wrapped. I don't believe it quoets it much anyway, but it will reduce the heat transfer issue.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: Floor pan sound deadener.
[Re: jcc]
#2713596
11/07/19 09:43 AM
11/07/19 09:43 AM
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Joined: Oct 2006
Posts: 7,367 Iowa
burdar
Owen's Dad
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Owen's Dad
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Iowa
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I am disregarding wind generated noise in the above discussion.. It is wind noise that I'm talking about. Driving a hardtop with the windows down, the wind drowns out most other noise. Granted, it won't be THAT bad with the windows up and a convertible top but I'd say most of the noise will be from wind. Maybe not. I've never had a convertible before. I just remember driving a Wrangler on my honeymoon and the wind noise was bad. I'll probably put some on the floor but maybe it's not required to cover everything on a convert. I'd like to hear from someone with a convertible who could give a before/after comparison.
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Re: Floor pan sound deadener.
[Re: burdar]
#2713676
11/07/19 01:23 PM
11/07/19 01:23 PM
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Joined: Dec 2003
Posts: 22,696 Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
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I am disregarding wind generated noise in the above discussion.. It is wind noise that I'm talking about. Driving a hardtop with the windows down, the wind drowns out most other noise. Granted, it won't be THAT bad with the windows up and a convertible top but I'd say most of the noise will be from wind. Maybe not. I've never had a convertible before. I just remember driving a Wrangler on my honeymoon and the wind noise was bad. I'll probably put some on the floor but maybe it's not required to cover everything on a convert. I'd like to hear from someone with a convertible who could give a before/after comparison. A Comparison of exactly what? How insulating the floor of a car in a Convertible will reduce wind noise? Wind noise is still an art outside of the OEM's, and our possible solutions are hit or miss, with so many factors involved its almost beyond practical discussion.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: Floor pan sound deadener.
[Re: jcc]
#2713684
11/07/19 01:34 PM
11/07/19 01:34 PM
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Joined: Oct 2006
Posts: 7,367 Iowa
burdar
Owen's Dad
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Owen's Dad
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Iowa
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A Comparison of exactly what? How insulating the floor of a car in a Convertible will reduce wind noise? A comparison if insulating the floor of a convertible has any noticeable decrease in cabin noise. It's proven to be effective on a hard top. But if wind noise is THE major/overwhelming source of noise in a convertible, a completely covered floor might not do much. You might decrease the noise coming up from the road, but you can't hear that anyway because the wind noise is the major source
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Re: Floor pan sound deadener.
[Re: burdar]
#2713816
11/07/19 08:05 PM
11/07/19 08:05 PM
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Joined: Dec 2003
Posts: 22,696 Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,696
Bitopia
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A Comparison of exactly what? How insulating the floor of a car in a Convertible will reduce wind noise? A comparison if insulating the floor of a convertible has any noticeable decrease in cabin noise. It's proven to be effective on a hard top. But if wind noise is THE major/overwhelming source of noise in a convertible, a completely covered floor might not do much. You might decrease the noise coming up from the road, but you can't hear that anyway because the wind noise is the major source I think you stated the obvious, which I was just hesitant to do.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: Floor pan sound deadener.
[Re: RealWing]
#2713958
11/08/19 12:40 PM
11/08/19 12:40 PM
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Joined: Jan 2004
Posts: 1,468 N.Y.
sixpacksteve
pro stock
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pro stock
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N.Y.
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Has anyone ever tried the Greatstuff insulation in spray can (windows and doors) that doesn't expand? in lower part of doors or around wheel wells. or hard to get too areas? always wondered about the moisture.
Hell Hath No Fury Like Mine
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Re: Floor pan sound deadener.
[Re: wkroncke17]
#2713980
11/08/19 01:51 PM
11/08/19 01:51 PM
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Joined: Mar 2007
Posts: 3,277 West Coast, USA
jbc426
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Do a search on this forum and also search Google for how to insulate small aircraft. Those techniques are very informative and effective.
Adhesive butyl products like Dynamat Extreme and Fat mat are good at stopping panel resignation, which is good. The real secret to keeping noise and heat out of the cabin is to use a double foil sided padding to cocoon the entire interior. Be sure to seal all the seams with that foil ducting tape with the wax paper.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's 1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: Floor pan sound deadener.
[Re: jbc426]
#2714091
11/08/19 09:48 PM
11/08/19 09:48 PM
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Joined: Dec 2003
Posts: 22,696 Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,696
Bitopia
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Do a search on this forum and also search Google for how to insulate small aircraft. Those techniques are very informative and effective.
Adhesive butyl products like Dynamat Extreme and Fat mat are good at stopping panel resignation, which is good. The real secret to keeping noise and heat out of the cabin is to use a double foil sided padding to cocoon the entire interior. Be sure to seal all the seams with that foil ducting tape with the wax paper. Foil is mostly marketing sizzle in these applications. To be effective it requires an air space/gap, and the reflective foil must face the offending heat source. http://www.radiantbarrier.com/resources-articles-how-radiant-barrier-works-heat-gain-loss/
Last edited by jcc; 12/01/19 07:01 PM.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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Re: Floor pan sound deadener.
[Re: Sniper]
#2714170
11/09/19 10:06 AM
11/09/19 10:06 AM
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Joined: Dec 2003
Posts: 22,696 Bitopia
jcc
If you can't dazzle em with diamonds..
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If you can't dazzle em with diamonds..
Joined: Dec 2003
Posts: 22,696
Bitopia
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I guess if it's double foil sided then the foil will be facing the heat on way or the other. Without the air gap, it doesn't matter which way the foil faces, as it reflects next to nothing.
Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
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