Dynamat a 90 - how much will I need?

[AlecW]

Hey Brains-trust,

Planning in doing the sound proofing for the new 90 im getting and wanted to know how much dynamat would kit it out?

Probably will leave firewall as dont want to mess with that but everything else is fair game.

Thanks

[Aguy]

When I did mine, I think I bought two boxes of the following,

Dynamat 10455 | Extreme Bulk Pack | ($195.85)RYDA Car Audio

I used it in the back, front, roof and doors.

I'm pretty sure it was only two boxes and I had some left over.
Maybe start with one first.

[AlecW]

When I did mine, I think I bought two boxes of the following,

Dynamat 10455 | Extreme Bulk Pack | ($195.85)RYDA Car Audio

I used it in the back, front, roof and doors.

I'm pretty sure it was only two boxes and I had some left over.
Maybe start with one first.

What was your result like? Is it worth the work?

Thanks

[Aguy]

It does reduce noise but i'm not sure by how much. I did mine over a period of time so didn't get the big change.

I think it made more difference doing the front.
I would do it all over again if given the chance.

Here is a link to my Defender,

http://www.aulro.com/afvb/members-ri...-till-now.html

[AlecW]

It does reduce noise but i'm not sure by how much. I did mine over a period of time so didn't get the big change.

I think it made more difference doing the front.
I would do it all over again if given the chance.

Here is a link to my Defender,

The life of a Black Defender 90 - From the beginning till now

Impressive work you did there, well done.

What thickness of closed cell foam would you recommend? Been having a look at fleabay but hard to choose which would be suitable. Can wrangle a bulk pack of Dyna for about $188 with postage it looks like

[Aguy]

If your going to use the closed cell foam for the back cargo area then thickness wont really matter.
On the other hand, if you use it on the seat box it will matter.

After using one layer of Dynamat and one layer of 5mm mass loaded vinyl, the original factory rubber matting just fitted over it all.

The only closed cell foam used was behind the dash (on firewall). It was recovered from old packaging material I had kept from work.

Wether it was the Dynamat or mass loaded vinyl or both, the heat transmitted through the floor and around the transmission area is gone.

[chook73]

Hey Brains-trust,

Planning in doing the sound proofing for the new 90 im getting and wanted to know how much dynamat would kit it out?

Probably will leave firewall as dont want to mess with that but everything else is fair game.

Thanks

Are you planning to do the roof and under the bonnet?

Two boxes wont be enough if you are and I would suggest you strongly consider these if your going to do it.

[AlecW]

Are you planning to do the roof and under the bonnet?

Two boxes wont be enough if you are and I would suggest you strongly consider these if your going to do it.

Yeah just wasn't too confident with messing with the hood lining. Is it difficult to remove and then refit? Would kick myself if it had any sag afterwards.

Bonnet will be a definite

[Blade74]

I think mine took about 3-4 boxes from memory but it was two years ago when I did it so can't remember.
Mine was a 2003 TD5 and I removed the hood and did the roof. It wasn't too bad you just have to dedicate a day to it so you get finished.
The company that makes dynamat also does a good under bonnet foam with foil that sticks very well under the bonnet.
I also used a product inside the car called Wavebar that is like a mass loaded vinyl.
I used the heaviest version.
Overall my car was a lot quieter.
I had a good sub and amp in my car and it didn't vibrate anywhere either.

[Toxic_Avenger]

How heavy is this dynamat?