Diabolical

i am getting ready to put in my new carpet, but i want to put in some insulation first. i remember reading about a product that people were highly recommending the top line, but their cheap line was crap. i've searched for "carpet insulation," "carpet," "insulation," and "wtf is that damn carpet insulation crap that i'm thinking of?" but i couldn't find it in any of the posts. anyone know what product i'm thinking of, or have any suggestions on what will reduce the noise without adding 5000lbs to the car?

Abubaca

iTrader: (3)

Are you talking about jute padding? My ACC carpet came with it already on. I suppose more padding could help, but the new carpet is a LOT quieter than the old worn out carpet. Not sure that more is really necessary.

Briansz28

Diabolical--are you talking about Dynamat? I read those posts too- the cheap stuff was like a layer of tar and the guy couldn't take it off....

azcamaro

iTrader: (1)

Here is a couple of threads on 'peel and seal'

https://www.thirdgen.org/techbb2/sho...hlight=dynamat

https://www.thirdgen.org/techbb2/sho...hlight=dynamat
go down the page to Night rider327's post.

Good Luck

Jim85IROC

iTrader: (2)

How much weight am I looking at adding to my car if I do the whole floor with that peel & seal crap? I'd love to have my interior lexus-quiet, but I really don't want to go adding 100lbs to the car.

Diabolical

i think i'm going to use the stuff raif was talking about, it's made by duplicolor.

Professional Undercoat with Sound Eliminator-Quick Dry

A Professional Body Shop Quick Dry Formula that gives you professional results-fast. This flexible, rubberized finish is the ultimate in undercoating for protecting metal surfaces from corrosion and moisture. Excellent rust preventer and sound eliminator.

Excellent rust preventer
Dries in less than 10 minutes
Dries to black paintable finish
Comfort Touch Nozzle
Premium sound eliminator
Ideal for wheel wells, gas tanks, frames and supports, weld joints, floor pans, doors and quarter panels

Jim85IROC

iTrader: (2)

undercoating isn't going to give nearly the same sound deadening results as Dynamat or potentially this Peel & Seal crap. I've used spray-on sound deadener, and although it's nice for areas where you can't get the mat, it's nowhere near as good.

Diabolical

bahahaha i found it i found it :lala: :lala: :lala: :lala:
it's Brown Bread made by B-Quiet. http://www.b-quiet.com/brownbread.html
according to the webpage, it reduces vibration sound by over 30% (depends on temperature). it weighs .4 lbs per square foot. it costs significantly less than dynamat. i will be ordering some of that anyone know how many square feet it will take?

Sonar_un

B-Quiet is some badass stuff. I have a few friends of mine who own a custom car audio business and they always use B-Quiet. They use the extreme stuff, but I hear the brown bread is awesome too. They usually end up putting about 3 layers of the stuff in thier cars. Of course, this is competition audio stuff so they need the subs to hit hard. I would put at least 2 layers in my car (I plan on doing it sometime in the future once I fix all the other crap wrong w/ my car). He tells me its not all that heavy and I would sacrafice 100lbs for a lexus like quietness in my interior.

Diabolical

any idea how many square feet it takes to cover the floor with one layer? i found on ebay someone that is selling the 70 square foot package for $125. i don't know how much coverage that will give, but at .4 lbs per square foot, it will only add 28 lbs.

deadbird

Get a tape measure and do some math. eg. If the cabin floor is 8' from firewall to rear seat and 7' from door to door (including going over ther tranny tunnel), 8' x 7' = 56 sqft.

Sonar_un

don't forget if you want to insulate the doors and the sides. Thats the only real way to do it. The floor is good, but doing the doors and the sides makes it that much better. Plus its advised to put at least 2 layers on.

Aviator857

According to their website it converts vibrational energy to thermal energy (heat) Is this really something I would want in my car.

EDIT well my concern wasn't heat from the vibration it was if a material is designed to creat heat, it will hold heat, and given enough heat it can catch on fire. EXAMPLE in a wreck something catches on fire directly heating the and burning the carpet/insulation how fast is it going to spread in the interior. Has anyone tested it's flamability(scrap not in the car), I know its not going to heat the interior up that wasn't my point. And no its not talking about friction either, it directl y converts vibrational waves into heat dissipating it through the foil surface and thus reducing the magnutude of the wave, by taking energy from the wave. I know rubbing creats heat but thats not what it means.

CaysE

Yeah my car is hot enough =\ what gives?

Aviator857

looking at the comparison I like dynamat better, and according to dynamat's website (supect competitors opinions) the b quiet has a tar like smell to it

Jim85IROC

iTrader: (2)

:sillylol: Dude, it's not exactly going to make your floor catch on fire. You're talking about such a miniscule amount of heat energy that you couldn't possibly notice a difference in temperature if you had a 747 taking off inside your car.

Sonar_un

Yeah, that opinion is highly suspect. B-Quiet has very minimal smell, and some versions don't have a smell at all. Dynamat has a distinct smell. In fact, they had to change how they made it because there were so many complaints about the smell.

Hg

Dynamat does have a smell to it, but we dynamated my dad's truck, and the smell was gone in a day or 2....

kanuck

quote:
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Originally posted by Aviator857
According to their website it converts vibrational energy to thermal energy (heat) Is this really something I would want in my car. ---------------------------------------------------------------------------


Yeah, that's a fancy-schmancy way of saying it keeps your trim pieces from rattling. . Anything that rubs will create heat energy from the friction. Just basic physics.

You would get more of a temperature change from the insulating effect of the material than the rubbing.

confucius101

ok so what's the best stuff to use ?

Diabolical

ok, i measured, it's about 72 square feet (overestimating measurements by a couple inches here and there) to cover the floor with 1 layer. that would be like 29 lbs per layer