I'm going to be rebuilding a pickup shortly with any luck. What I'm wondering about is I'd like to do some sound deading in the pickup. Would I be better off using something along the lines of dynomat or a spray in bed liner inside the cab. What are your thougts???

 

I put a can of bedliner on the floor of my truck when I fixed the holes. It's definitely a good idea because now it's never gonna rust again, but I don't think it does anything for sound deadening.

I bought some cans of rubberized undercoating, which is what my classic cars had for sound deadening (which works real well), but I test-applied it and couldn't really get it to work anywhere - maybe the hardware store kind isn't good enough. The kind on my old cars was really thick.

 

if you search on here ive heard of some guys using stuff from hom depot or lowes and they say it works great i thought of doing it just to many other things

 

I bought some fatmat that was pretty pricey, haven't received it yet so I don't know how good it's going to be. But I got a tip from another member about some stuff called Blueskin. It's a roofing sealer for the valleys in a hip type roof. This stuff seems pretty good, I bought a roll "I think for $69 bucks" haven't used it yet. But it appears to be enough to do 3 trucks. I think it was "RafterB" who told me about it and has used it on several trucks with great success. I have toooo many things going on to do my play stuff yet, shop full of fun stuff and no time to play. Check out the blueskin, I think it will do great. Good Luck. Edit wrong spelling--"Rafter B" give him a pm and check his input.

 

I am in the process of trying to reduce the noise in my cab. Project is currently underway and I will start a post describing my results in a few weeks once my project is done. I have a decibel meter and have taken measurements before the soundproofing, and will take measurements afterwords as well. I am using sound proofing paint, in conjunction with neoprene for it's sound absorbing properties. Hopefully the results will be worth my while...

 

I see, this BlueSkin is a different brand of what we use around here made by Grace, called Ice & Water Sheild. I would be careful putting this in your truck! If it's anything like the Grace product, it will SMELL heavily of the petroleum base it is made of! I've been in uninsulated attics that have a slight odor of the Ice & Water Sheild just from the nails passing through it, then the sheathing on the roof.

It's an amazing product that will cling to ANYTHING especially after it gets warm (like the sun, or like heat from the firewall and transmission hump). You will have a heck of a time taking it off if you would ever need too!

 

I spent hours covering every inch of floor firewall roof rear panel and everything else in my crew cab with 2 layers of fat mat and a 1/2 foam rubber it made the truck sound more solid whem you close the doors and got rid of some of the road noise but for the most part I still here everything and it was kind of a waste for me

 

I just finished my install of the insulation stuff from Lowe's and some beefer 1/2 stuff from Jegs.

I still hear everything, but it's a lot quieter. I wish I would have just bought the dynamat for the extra money. I may do it just to see the difference. Cause the stuff I'm using is for heat shielding, not sound deadening. While it did take away the highway drone...I can't help but think that dynamat would be even quieter!

I took these pics yesterday and was hoping to get a chance to share them, hehe.



I use spary on headliner glue and taped all my joints with the silver tape that you would use when installing duct work.

 

this is with dynamat in the doors. made a big difference but the stuff is $130 for 20 sf ,my truck needs 80 sf

sorry about the screaming music in the back ground
before


after

 

If you want sound deadining and bed liner quality Noise Killer sound deadining spray You can use an undercoating gun. Go to the thrift store and buy a cheap food processor for mixing sometime the Noise Killer settles to the bottom of the container or sometimes you might want it thinner.
The nice thing about it is that it is water soluble cleans up with a wet wrag before it cures. After it cures it is water resistant rock hard.
I sprayed 9 liters in my 76 corvette and dynamat. It is cool and quiet.

 

Rott-n-Dawg, I just sent an e-mail to the company you mentioned Noise Killer. I asked them some questions about their product and will share the info when I receive an answer. Specifically I asked them if you can apply their product to the inside area of our cabs. If you look at the mega crew cab project Admoparman is doing he has some pictures of the rust in his cab. If the product sticks to this it will serve two purposes. The product is a little pricey but if it works it might be worth it. I am not sure how much you would need to do the inside of a crew cab.

 

My plans for now are to use to layers of FATMAT on the inside top to bottome and the under side of the cab will recieve a healthy dose of undercoating.

 

Hey everyone I received a reply from the Noise Killer mentioned in Rotn-Dog post. He wrote:Good Morning Alan,
In reply to your questions. We have had great success with our Noise Killer sticking to patena surfaces. Yes, it is very easy to installed. It can be sprayed, rolled or brushed on. It will work well as a sound deadener. Let me know if you have any other questions.
Thanks
Rick
I asked if the product would stick to a surface that has a "patena" or a light coat of rust on it. As in his reply it does. It also can be sprayed,rolled,and brushed on. I hope this helps narrower down the rust and sound thing for everyone. I personally am going to check into this more.

 

Anyone try this stuff?

http://www.secondskinaudio.com/

 

Johnny 5, you beat me on the sound deadening. Did you install it on the inside metal that you are tapping on? Or is it just between the door panel and the door?

I haven't done my doors yet.