Look at this sound deadener!

[Finleyville 10+ year member]

Anyway…

While researching sound deadening materials to isolate the car’s cabin from outside noises, I found out that traditional Dynamat/Peel-n-seal/eDead products are not ideal for this purpose. They are great for vibration dampening and mass loading but not good for absorbing incoming sound from the outside.

I have found a company and product that looks very promising for the application I need. The company is called dB Engineering (http://www.800nonoise.com). The product is called Ultima WM2X. Look here for a pic. There is not any information about this on their site other than the picture. I was told it is a leftover from a one time massive custom engineering order. It is a flexible, multiple density layer mat. The layers are as follows: acoustical barrier vinyl sheet, closed cell foam mat, another barrier vinyl sheet, open cell foam sheet, vinyl top cover. The whole mat is .75” thick. Not bad since two layers of Peel-n-seal is thicker with much less deadening efficiency. Looking on their website, just the one 1/8” thick vinyl noise blocker is said to reduce noise transmission on average by 26dB. And that is only one of the five layers! I wonder how true those statements are…

Now for the bad news. Since it does have one layer of open cell foam, I’m guessing it would not be good for in-door locations where water could get to it. One would have to use other water repellant solutions in those locations. So basically I see this being a floorboard/interior firewall use only.

It also has no self-backing adhesive. You would have to use a contact cement or something else. I wonder if a product like eDead’s V.3 could be used instead…

The last is the price. It only comes in sheets: 37”x56”x3/4” or about 14 sq. ft. costing $44.10 per sheet. That equals to about $3.14/sq.ft. (I have no idea about shipping.) While that does seem extremely pricy, a double layer of eDead/Raamat would be more expensive and not give the same amount of sound protection IMO.

I called and asked the rep if this could be used in an auto application. His response was he thought “that it would be overkill for that application.” Now if you asked me, any sound deadening overkill is right up my alley!

Please let me know what you guys think about this stuff. I am very interested to know if this would work for a very, very quiet car.

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[tropicaltornado 10+ year member]

Hmm...advertising maybe..its only your 4th post man...

 

[zachzchw 5,000+ posts]

Try it out and see how it works for you.

 

[swimfreak26 10+ year member]

The whole mat is .75” thick. Not bad since two layers of Peel-n-seal is thicker with much less deadening efficiency

Two layers of Peel-n-seal is no where NEAR .75" thick...not even close.

 

[CarlB 10+ year member]

SecondskinAudio has the same types of things, but not in one mat. You can buy a normal deadener, and then a different types of pads.

 

[JoseMCeee 10+ year member]

^maybe like .10 thick

 

[JAZN 5,000+ posts]

no self backing adhesive? no thanx. too much energy.

 

[bigjus 10+ year member]

"no self backing adhesive? no thanx. too much energy."

x2

 

[Buckshot 10+ year member]

I find it funny that this guy is just trying to tell us about a new product he found, and instead of embracing his idea, and say "hey man good find", we go, hey dude, you pretty much can **** a dick...

I think that would be a good idea, but I believe that you would have a hard time contouring to dips in a trunk or somthing.