What sound deadening material have you used?

[BADCLOWN]

I'm not a huge audio guy but all I've heard for years is dynamat. The only other name I've heard in years past is fatmat. What have you guys used that works well? I might be doing my BSW stg1 before I move to D.C. and "might as well" throw sound deadening in while it's done. Not a insanely meticulous cover every square inch job but enough to make the door more solid.

[ELCID86]

I've used RAAMat and the foam on several cars over the years. I do have it in my ZHP. Doors and under rear seat.

[ELCID86]

http://www.raamaudio.com/package-1-20-sheets-of-raammat-bxt-ii-37-5-sq-ft-and-3-yards-ofensolite-iuo-peel-and-stick-41-625-sq-ft/

[ZHPizza]

I've used Reckhorn and love it, but I think it's discontinued. I've heard good things about Noico and would use that if I ran out. Just don't waste money on the Dynamat name.

[BMWCurves]

I used Noico when I did my sound deadening, specifically these two which was probably double what I needed for my coupe.

1. https://www.amazon.com/gp/product/B00URV8MFC/ref=oh_aui_detailpage_o03_s01?ie=UTF8&psc=1
2. https://www.amazon.com/gp/product/B00URUIKAK/ref=oh_aui_detailpage_o03_s01?ie=UTF8&psc=1

[NorCalZman]

I always thought our ZHPs were pretty darn quiet. I can hold a conversation at normal volume on the freeway pretty easily.


That said, does putting this stuff just in our door cards and under the rear seat shelf really make a noticeable difference?


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[BMWCurves]

I didn't think it did a whole lot afterwards. When I installed my TSE3, the difference in volume between windows up and down is pretty distinct and I do chalk that up a bit to the added sound deadening.

[ELCID86]

Yeah. Maybe a few db difference.

[Bludsport]

I'm not a huge audio guy but all I've heard for years is dynamat. The only other name I've heard in years past is fatmat. What have you guys used that works well? I might be doing my BSW stg1 before I move to D.C. and "might as well" throw sound deadening in while it's done. Not a insanely meticulous cover every square inch job but enough to make the door more solid.

Dynamat is not really a "sound deadener", it's a vibration and resonance damping type of material. If you want to deaden sounds like engine, exhaust, road noise, etc., the best solution is to combine a vibration damping material like Dynamat along with a 'decoupled' layer of MLV (mass loaded vinyl). The trick is to not attach the MLV material directly to the sheet metal of the car, but instead apply it to the vibration damping material. I have a convertible and noticed a lot of noise coming from the rear wheel arches, fuel pump and exhaust. It's a pain in the ass, but I recently installed some MLV along with CLD tiles (similar to dynamat) in my trunk and the results were pretty amazing. BMW also used CLD tiles in areas like the front doors and the spare tire area, but not really enough to make a big difference. Check out this site for more info:

https://www.sounddeadenershowdown.com

[danewilson77]

Dynamat is not really a "sound deadener", it's a vibration and resonance damping type of material. If you want to deaden sounds like engine, exhaust, road noise, etc., the best solution is to combine a vibration damping material like Dynamat along with a 'decoupled' layer of MLV (mass loaded vinyl). The trick is to not attach the MLV material directly to the sheet metal of the car, but instead apply it to the vibration damping material. I have a convertible and noticed a lot of noise coming from the rear wheel arches, fuel pump and exhaust. It's a pain in the ass, but I recently installed some MLV along with CLD tiles (similar to dynamat) in my trunk and the results were pretty amazing. BMW also used CLD tiles in areas like the front doors and the spare tire area, but not really enough to make a big difference. Check out this site for more info:

https://www.sounddeadenershowdown.comGreat info. Thanks

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[sparky300]

Dynamat is not really a "sound deadener", it's a vibration and resonance damping type of material. If you want to deaden sounds like engine, exhaust, road noise, etc., the best solution is to combine a vibration damping material like Dynamat along with a 'decoupled' layer of MLV (mass loaded vinyl). The trick is to not attach the MLV material directly to the sheet metal of the car, but instead apply it to the vibration damping material. I have a convertible and noticed a lot of noise coming from the rear wheel arches, fuel pump and exhaust. It's a pain in the ass, but I recently installed some MLV along with CLD tiles (similar to dynamat) in my trunk and the results were pretty amazing. BMW also used CLD tiles in areas like the front doors and the spare tire area, but not really enough to make a big difference.

Just wanted to add to this discussion as I just did this this weekend.

Agreed. In fact, Dynamat explicitly describes this exact process. While I admit the factory crayon garbage had deteriorated to the point that a trash bag of mashed Ritz crackers stuffed under the seats would've been more effective, the difference was indeed noticeably quieter. It also adds mass and continuity to those panels reducing vibrations.

Stripped of the factory garbage...

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Dynamat and 1/2" Dynaliner applied...

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