Dynamat - What is it? Do I need it? How do I install it properly?

For the doors I used some no name Chinese CCF from Amazon but for the roof I used Frost King CCF insulation from Home Depot as it was a lower price and a lot easier to work with. It was also more convienant to get another roll when I decided to double up the foam on top of the Dynamat in the roof. Like I said, it gets hot in Florida. I used 12 square feet of Dynamat in the roof which gave almost 100% coverage on the exposed roof. The crossmembers do not need any Dynamat since they are acoustically separated from the roof but I did cover them with the foam for heat rejection. It is interesting that while driving in the rain the only sound I can hear is the rain hitting the windshield but while stopped I can hear some tiny thuds on the roof where it used to be a loud pinging sound. Of the 10 mods I have done so far this is my favorite. Hope this helps.

 

Thanks. I'm hoping to do this soon

 

Well, they didnt really fix anything. They said abrasive tape could help but that they didnt have any.... I dont think the truck was built around upgraded speakers.

 

I would like to thank Rob @rob feature for his link to a thread where 21 different sound deadening products are tested over a three year period. If you can read at least the last 3 posts on the link below you can get a summary of the research that was done. I have to blame Rob for making me stay up past midnight 2 nights in a row this week reading all 69 pages of this thread. JK. It was very interesting and for awhile it made me question my choice of Dynamat which performed just above the middle of the pack for sound deadening. He also did tests for heat tolerance which is important to me since I live in Florida and Dynamat did very well in those tests. After all was said and done I ended up being satisfied with my choice of Dynamat since it was the most efficient product at the lightest weight and our trucks are heavy enough as it is.

http://www.diymobileaudio.com/forum...ns/146403-sound-deadening-cld-testing-69.html

My only question now is if it would be worth it to put a hoodliner under my hood for sound and heat resistance. I know that a lot of cars have hoodliners while our trucks only have bare metal. Anyone out there who may have added a hoodliner please let me know.

 

In my personal opinion, www.soundstop.com sound suppression foam/"dynamat-like" sound deadener is superior, and easier to work with than Dynamat. I lined the entire cab of my Dodge Cummins truck with that and it made a very significant difference.

 

I used soundskin for my doors and roof, it's a much nicer product with a foam layer. I used generic metal backed deadening for the floor and behind the seat, used 3 layers. I did it mostly because the materials were free lol but it does make a huge difference with sound and insulation. Would recommend everyone do it.

 

Dynamat is too expensive for how much you get. I feel like you're paying for the "brand", so I've never used it or bought it. For my current ongoing sound deadening project in my Tacoma I'm using sound dampening tiles from Second Skin Audio. I got a black Friday deal on 120 sq ft of it last November. I'm using CCF from thefoamactory.com and MLV from SoundProofCow.com.

 

anyone know how much it is to install Dynamat professionally? Just want a ballpark price before I commit to my local audio shop.

Planning to dynamat the entire cabin cuz i'm getting a sound system too. Might as well right? thanks!

 

and i meant install *hourly* or for an entire cabin

 

I'm planing to add hoodliner sound deadening to my Taco, and I'm thinking that the limited should come with one. All TOYOTA limited model trims I've looked at come with them, but I have not looked at the limited TACO.

Perhaps an owner with a limited would be good and kind enough to look under the hood and let us know, and if so, just order an oem one.
I looked online, but their part research is limited, no pun intended lol!

As far as sound deadening for the rest of the vehicle I've done some research on material and proper adhesives to use inside the hostile auto interiors and I've decided to bypassed the expensive stuff and already did the doors with stuff from homecheapo, and its a big difference!

If you want quiet, vinyl is the WTG, (as in vynil tiles aka floors) but its very heavy, too heavy for my taste. I did find a small maybe 4X4 vinyl tile in the front doors (inside) put in at the factory, so I know I'm on the right track, imagine that lol!

I may go with what they call the "floor muffler" sold at homecheapo for about $35 for a big roll for the flooring, and then add an insulating material that is used on RV generators for sound and heat suppression on top. It's all in the planning stages yet, so no detail info for now.

Good luck!
Cheers!

 

Let me know if and when you add a hoodliner and if it provides any sound deadening benefits.
You may live in Canada or some where up north but I could not use any of the Home Depot materials since they are asphalt based which melt over time and off gas some dangerous chemicals in our Florida heat.
I have done my wife's SUV and will be doing my son and daughters cars next. Good luck with your research and your project. It is definitely worth it.