sound insulation - Dynamat

[Europa73]

Hi all,

I am putting in new carpets - thinking of putting in sound proofing first - has anyone used Dynamat?

If yes - was the cost / effort worth it?

thanks,

[jbcollier]

I have used DEI products and they are ok.  They work well enough but the adhesive is sometimes just so-so and the prices high to say the least.  This stuff is made in Canada, much cheaper, works very well and has good adherence.

www.b-quiet.com

Specifically:

https://www.b-quiet.com/products/b-quiet-ultimate-50sqft

The edges are gooey so I finish off with aluminum flashing tape from a hardware store.

The local Land Rover lads recommended it and we have used in many projects since.  I did the whole firewall, sills and tunnel of my S1 and it made a huge difference.

https://jbcollier.smugmug.com/Lotus-Europa/i-pdQZ8tQ/A

[Europa73]

This is great!


Many thanks,

[Clifton]

I did a lot of research on sound proofing.  The butyl ( dyna mat ect) works best in a small range of temp. 70-80*F. It works ok and is very easy to install and popular but really doesn't stop much noise. It does ad mass to panels though. It will make the car sound solid and won't vibrate if you have a loud stereo. Mass loaded vinyl is denser and better for stopping sound. To really work it needs to be held off the surface some, decouple layer.  This goes for any sound deadening. Lexus uses this on the firewall. You can buy it bare or with a foam already bonded to it. If you decide on the dyna mat type, make sure it is butyl and not asphalt based.

http://www.soundown.com/AI.htm  they have pdf's that explain each product.

https://www.sounddeadenershowdown.com/products/ccf good explanations of each type of sound product

Comparison of all the butyl type mats https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0ahUKEwiMgrTTxZ7RAhXEw1QKHXcGDmoQFggcMAA&url=http%3A%2F%2Fusers.actrix.co.nz%2Fdougal.ellen%2Fforums%2FSound_Deadener_Showdown.pdf&usg=AFQjCNHVcQSHn8SPl9dKn16kDIXeH1JDdg&sig2=n5oIG4_vfICzvimn58PhLw&cad=rja

http://www.aircraftspruce.com/catalog/appages/soundproofinstall.php

For a firewall http://www.dupreeproducts.com/ProductDetails.asp?ProductCode=INS%2D001

[jbcollier]

Whichever way you go do make sure you only use suitable materials on a firewall.  Europas don't need assistance in catching on fire.