The Stovebolt Site Forums The Shop Area Interiors Dynamat or similar?

Do you guys put dynamat or similar under your firewall pads and floor mats? I have a firewall pad from lmc with the blanket type insulation bonded to it, and don’t have a floor mats yet. My truck is certainly not perfect but the goal is to make an original appearing truck that drives good.

On my 46 I cheaped out a bit and used the Summit Racing version a few years ago. It was worth the effort.
https://www.summitracing.com/parts/sum-879024
They have a 5 or 9 sheet packs available, sticks well- no smell. Made a significant difference on my 46, did firewall, floors under the stock rubber mat, behind door panels, lower rear wall of cab…did not do roof as didn’t want to take on R&R of a now perfect headliner. I closed all non used holes in firewall with washer/ bolts before installing.
Used a deep socket as a roller to smooth it out which really helped. Surprising how solid the doors sound with just the back side of door panels done(didn’t want anything on door exterior or bottom for potential moisture issues)..

What truck are you working on?
Chuck

On my 1950 3100 I used the below stuff. I bought a hard plastic roller and it went on easy. No smells, off gas. I put it everywhere! In the doors, on the interior gas tank, roof, floor, ect. Made a 100% difference in sound, noise reduction. It keeps it cooler in summer and warmer in winter.
Just my 2 cents.
I got several rolls at my local Lowes.
Then I put the original style one piece rubber mat!
Works great, broom it, even hose it out. It's a working ranch truck.
Todd

A 1953 3800 pickup. It was in the woods since 1980, so it’s been quite a project, but there is finally some (distant) light at the end of the tunnel.

I used HushMat on the Galaxie many years ago and it was cheaper than Dynamat. In the future I'll use Shaffer's suggestion. I've seen others do it and it gives the same results as the expensive stuff.

I bought KilMat from Amazon and so far placed in it my doors. It is half the price of Dynamat and works well. Here is a link!

I used the Peel & Seal on my '49 everywhere. It is not as thick as Dynamat, but is much easier to form into corners and curves.
it does an excellent job at keeping the heat out and reduces the road and engine noise to the point that all you hear is the whistling door windows.

I used Frost King foil faced adhesive backed insulation. Affordable and readily available at HD and Lowe’s.

Seems to be pretty good agreement that the various flavors of butyl-foil work very well. I do recall some discussion that it might NOT be the right choice for underside of the roof skin. Not great at blocking that heat…I think that was the complaint.

Any suggestions on what to use there?

Park it in the shade?
I used the Peel & Seal on the underside of the roof and on the underside of the cowl forward of the windshield. Does it keep the heat out? I don't know. I don't have an infrared thermometer to test it. The headliner sure does help keeping the heat off of my bald head.

Lingda 10mm Heat Shield Thermal Sound Insulation Proofing Deadener Mat Car Noise Control Acoustic Dampening Moistureproof Waterproof (40"X80")
I use this.

Any noise reducer will work...and here's how: the foam soaks up some of the noise and the metal layer (essential) converts the vibrations into heat energy and reflects them back into the foam.

I used some Dynamat-like stuff I got from a marine supply place. They use it on fishing boats that run to Alaska and such. It's expensive but it does cut the noise and heat considerably. That said, my cab is still too noisy on the hiway. There's tire noise, exhaust noise, gear noise and biggest of all wind noise. With the camper off, the noise level drops to tolerable-without-ear-plugs. Same is true pulling a trailer -- most of the wind noise is behind me even though the engine is working just as hard.

One other place to apply an acoustic mat is on the roof of the cap…I have a 1/2” thick peel and stick pad that I got from dynamat (I think) that I installed on the inside roof panel, and then installed the cardboard headliner over it. My cab is very quiet- but I also have dynamat over the entire floor, under the seat, along the back wall below the rear window, and up the front firewall.. also, some applied inside the doors. I think he doors and the roof stops them from drumming…whatever it is, it worked really well.

And don't forget the area under the front cowl on either side of the cowl vent. That is a lot of geography for sun to beat down on.

I need to take a ride with someone who has done this type of heat/sound deadening. Curious how much better it really makes things.

My truck is night & day difference. Sounded like a metal hollow trash can , very loud.
After adding , quiet, no loud hollow can sound.
A real difference in my 1950 3100. 3 window.
Todd

I used a rubber foam type stuff I got from Amazon. I don't know how it compares with other material, but I would use something that has a bit of weight to it. The bubble wrap stuff is probably too light to dampen any drumming noise from the sheet metal. Many industrial plants use heavy vinyl curtains to contain noise, especially low frequency sound. The additional weight will take out the "clang" when shutting a door. I've heard of guys putting a glob of roofing tar in the middle of a door panel to do that, but that's kind of stinky and messy.
I used the stick-on rubber foam on the roof, inside the doors, and behind the gas tank, not wanting to change the original appearance of the rear of the cab. It's been many years since I've ridden in a stock AD truck, so can't really compare to what I have with mine with the sound deadening, but I'm satisfied with what I have.

Come to Smokey mountain nationals. You can ride in my truck!

Chris

I used Dynamat everywhere I could put it in my 53 including the doors. Then I did a YouTube video showing and hearing each door close one with and one without. This should be the link.

Dynamat

I used this:

https://www.amazon.com/dp/B00URUIKAK?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_4

on me vette a few years back, worked out well. I plan on using it on my tin can truck : )