sorry but xterm wont do what you want. products like xterm reduce vibrations, and noises generated by the vibrations.

What you want is a sound barrier. Products like B-quiet V-comp, L comp, And dynaliner (I think thats the one?) work better as barriers because of the layers of foam and vinyl etc..

 

Ha, knew it.

 

Well an interesting fact is that ALL sound is a vibration [img]tongue.gif[/img]

To be a little more serious about this Chev2 is right, somewhat. Reality is that there is no "mircale" deadening/absortion/barrier product. You have to use a combination of various products.

When we designed X-terminator we wanted to combat the most annouying frequencies. For something like an exhaust X-terminator would be an excellent choice. Combine it with a felt type material (like already used in you car) or a closed cell foam and you have got one hell of a final product.

As for an undercoat? Yes, my product will handle being applied under a car. Its not going to wash off, break or fall off, chip, etc. Once it is applied it is actually there for pretty much the life of the vehicle. In fact the main reason the product is so durable is because we wanted to give people the option of using it on the outside of the vehicle. It even has rush inhibitors to prevent rust.

BTW, I am in no way in this post trying to say that any of the products sold by B-quiet are not good. I am just speaking about the product I have first hand design and usage experience with.

 

[quote]Originally posted by MRS.AUDIO:

Quote:

You have to use a combination of various products.

And that is exactly what v-comp,l-comp and dynaliner is.. A combination of products.. which is what makes them better then xterm as a sound barrier.. Which is what you want to reduce road noise, engine noise, etc.

[ March 13, 2004, 07:16 PM: Message edited by: chev2 ]

 

You sound like you have a lot of knowledge on this subject...have you tried X-terminator for yourself??
I am just wondering because I was looking to purchase some and I want to know if it is worth my money.

 

Constrained layer products, which I am fond of, will work well inside the car... but only where the foam will not be compressed. Outside the car products that are inert and are designed to work in the weather extremes are best. I used to use driveway or roof sealer (STINKY STUFF) back in the day. And the X-term sounds like a great product under the car (this thread was about undercoatings). From Mrs Audio’s description I am not sure there is a better product on the market ... as long as it sticks to the underbelly of the car. The ony real competition woud probably be Cascade.
The concept of deadening the sound is to combine absorption and vibration damping, mass loading (using materials that are dense) is the historical solution to achieve that goal. The constrained layers of insulation will perform most of the same function as mass loading but with less weight (and maybe higher cost too). Remember, most constrainded foams do not damp vibrations the metalic or rubber part does. B-Quiet looks to do a good job inside the car as long as the foam is not compressed.

 

Better is a very relative term in a case like this. In reality you are making sacrifices. You can either have a product that is alright in all aspecs or you can start by using a product that is excellent at a few specific things. From there you can build on it to make a wicked final result. In fact a product like v-comp/l-comp can work awesome in conjunction with X-terminator. My husband didn't make X-terminator to replace the various products car manufacturers use (felt and foam based products), he developed it to work in conjuction with these products.

OH, and this post WAS originally about undercoat type products. Here is an interesting bit of info: X-terminator can actually help eliminate road noise if use on various suspension components (trailing arms, A arms, etc.)...tell me that isn't crazy

 

Wow, another thread to push Xterminator tar deadning. It's from eastern Canada, I'll stay away from that. especially seeing as Chris is te spokesman for it, I don't want any connection with that dickfor. Contrary to whatever anyone says Lcomp and Vcomp are amazing and they do work wonders.

 

[img]graemlins/bow.gif[/img] All bow down to the OH so great westerners. What does it matter where a product comes from?? From what I can see Mr Big started this thread asking for opinions on a product, unless you are trying to say that he has some vested interest in the company I can't see it as being a plug.
Why are you trying to make it out to be something more than it is. [img]graemlins/dunno.gif[/img]

 

BTW Lcomp and Vcomp...what makes them better? Not trying to start anything, just want to know where I should spend my money.
Also...you said "tar" deadening...does X-terminator have tar in it? Cause that might be a HUGE factor in my decision, I could just buy roof tiles if I wanted tar.