Does Autozone, Kragen or Pep Boy's carry any kind of sound deadner?? I want something that is going to be kind on the wallet...

 

Peel and Seal from Home Depot, or a similar brand of asphalt based roofing membrane is a poor-man's Dynamat. It deadens sound very well and is very affordable. It's drawback is that it is not nearly as temperature resistant as the stuff made specifically for automotive applications, so if you're in a hot climate you should forget about it. If you're in a moderate climate, it will work well for floors and even vertical surfaces (doors, 1/4 panels) but I wouldn't trust it on roof panels or anywhere else upside down.

For a more appropriate product, check out Second Skin Audio. They just lowered their prices dramatically and I've seen some reviews from a guy who tested a bunch of stuff before buying and kept records of his testing. The Second Skin stuff scored at or near the top of his list. It appears to be a very good product, and it is very well respected around the 'net. The owner of the company posts on a lot of the car audio boards and him and his product are very well liked.

 

Raam mat is another option. I'm running it in my car and it does a great job. It also sticks like no other – don’t expect it to ever come off. It cost me $95/roll shipped (I bought two rolls but have only installed one so far).

One roll is 62.5 sq ft or something like that.

 

If memory serves me, that was the other brand that the review had the most good things to say about.

Lemme dig up that review...

Ahh, here we go: http://www.sounddeadenershowdown.com/

Cliff's notes: Second Skin gets ranked as the Highest Quality, RAAmat gets ranked as Best Value. Now that Second Skin has drastically lowered their prices though, they warrant serious consideration even by those who don't need the last bit of performance.

Either way I doubt you'll go wrong.

 

FYI, the payment page on Second Skin Audio's website is not secure, so I recommend payment through Paypal. Better safe than broke.

 

does anyone use spray-on, or paint-on liquid sound deadener?

like e-dead? That seems like it would be more attractive, but not as thick. I like the idea of REAL insulation (like padding.)

 

"real" insulation, while keeping the cold air and a lot of sound out, doesn't really do much to stop panel resonance. You're essentially allowing the sound to come through the panel, then you're stopping it in the foam pad. High mass sound deadener stops the transmission of sound through the metal panel, which is really a better way of doing it because it will damp a wider range of frequencies (I think).

 

basically, you are saying that spray/paint-on deadeners are the way to go, *you think*.

 

I've never used the spray on ones. I've only used the stick-on mats. I'm just saying that a mass-based product, be it stick on or spray on, will work better than just sticking a foam jute under your carpet.

 

If you read the whole sounddeadenershowdown site, the author makes it a point that you should have two forms of sound deadening: mass-based to stop resonance (stick on pads, liquid deadener), and (usually) foam-based to absorb reflections and outside noise. It's basically like this: you put the mats on the floor (or doors or wherever) and put the jute on top of it.

 

i would never go with the spray-on deadener. from personal experience (with the Rockford brand i think) it is the most useless produc ever. i thought i was going to be like the expanding spray foam...but it basically serves as a product to create a mess underneath your panels. now underneath my panels, it looks like i sprayed a bunch of primer all over...not to mention it doesn't stop resonance. the best is what you guys were mentioning earlier (the stick on brands). hope this helps and good luck with your setup!

 

People think the spray on stuff is going to work wonders with just one coat. In reality, you need to build it up until it's as thick (and more importantly, as heavy) as a comparable stick-on product. In places where you can put the mat, it's going to be easier and faster, but the spray-on stuff is good for getting inside of panels where you may not be able to reach with the mat stuff.

 

wait a second...

are you saying that you have a 1984 Firebird, and it has squeaks and rattles?

I call B.S. because everyone knows our cars are completely silent.

 

Since I'm not sure if that's sarcasim or not... But what does what I look like have to do w/ helping me out? Want pic's? Go to http://www.myspace.com/youlove2h8me

That's me.

As for that last reply... I'm 90% sure that's sarcasm.

Anyways, I decided to just go w/ Dynamat. Figured might as well get my $$'s worth. So I ordered a load of it...

Thanks guys!
JMJ

 

dynamat!? did you already order??

please say no

 

I'ma gettin' ready to order it... But I'll hold off on it to see what ya all think of it...

 

Get the Second Skin Audio stuff.

 

Dynamat is a grossly overpriced product that’s sold purely for brand name recognition and a heck of a lot of marketing (another example of overpriced crap.

The dynamat bulk pack retails for $250. While it does have the world "bulk" in it, bulk doesn't mean very much to the folks over at dynamat. It only comes with 36 square feet of mat. Sure, you can find it for less on sale (car domain has it for $160 right now), bit it's still a rip off for what you're buying.

All any of these products are is a piece of synthetic rubber mat that has a piece of cheap aluminum on the top of it. The only real difference is the adhesive and thickness and raam mat is actually better in both regards. All of these products are designed to do the same thing: add mass to pieces of plastic/rubber so they won’t vibrate as quickly (if at all).

To put it slightly more bluntly:
Dynamat bulk pack (36 square feet) @ full retail costs $7 a square foot
150 is the lowest you're going to find it including ebay and that takes the price down to 4.17 a square foot
Raam mat rolls (62.5 square feet) cost $100, which comes out to $1.60 a square foot.

$1.60 a square foot vs $4.17 at the cheapest per square foot.

Also, I've used a little over a roll and a half of raam mat on my car (or about 100 square feet) and I'm still not done. By the time all is said and done I will probably have around 150-200 square feet on my car. That would be $600 worth of dynamat on sale or about a grand of the stuff at its normal price.

Not to be rude, but please tell me how that is getting your money's worth. If you're afraid that a competitor’s product won't stand up to the super special amazing name dynamat's marketing team gave dynamat look around and see what other people have to say about it. You will almost always references to alternative/better products. For example, you were the only one who mentioned dynamat in this thread. Everyone else mentioned something else.

Just in case anyone was interested in second skin’s pricing, it isn’t as low as raam mat

 

about to order some raammat myself, just going to do my kicks and hatch area for now though.

are these deadeners and foam pads airtight, or can they be made to be, to seal up small holes? and i do remove all the stock under carpet padding, and the black thermal pad or whatever there is behind the kick area, right?

 

Yes, things like raam mat, second skin, and dynamat are all air tight. This means they can seal small holes but they're not a good idea for huge holes because they do flex some when there's no metal supporting them. Any of the three should be applied to bare metal (or painted metal ).

https://www.thirdgen.org/techbb2/sho...hreadid=326023 for the kicks.

 

Their prices and masses aren't too far off, so depending on your goals in this price range, you can go with either one. RaamMat is cheaper, saving you money. Damplifier has more mass, increasing its effectiveness.

 

When you get an employee discount at Best Buy where dynamat extreme is sold and you can get it for like 33% of the regular price... it's hard to beat that! :P

 

It still costs more than the alternatives. 33% of $7 a sq ft is $2.30. Raam mat costs $1.60 a square foot

Not that it's as big a deal, but still

 

Id agree with what everyone is saying about Second Skin and Raam Mat. Ive heard very good things about both and the savings is good. Another name Ive heard come up alot is Brown Bread but I dont know much about it.

 

I'll throw in my

We used Dynamat extreme on my girlfriend's Lumina, for the trunk.



Paid $65.

Made next to no difference.

I used RAAMaudio stuff, same amount (20sq ft), WAY cheaper (forgot what I paid), and it sounded great in her new car (another Lumina).

So I'm not sure if something was different or not, but I was NOT impressed with the Dynamat.

 

looks like you didn't cover the whole lid, and did you also cover every surface in the trunk area?

 

Yes, the whole trunk was done (sides and back, and underside of the lid).