Ok i know there is another thread "Sound Dampening" but i didnt want to hijack his thread But i warn you i will be asking similar questions about similar products......

Part 1-

So 1st, whats better to stop and prevent rust above the headliner, in the wheel wells, under the interior carpet, etc?

Rust Bullet? BEST PLACE TO BUY?????

OR!

POR 15? BEST PLACE TO BUY???????


Part 2-

Next! Sound proofing the cab. Id like my cab to be a little quieter, less hot, and vibration wise i could cut down on that a bit as well. And seeing i will be installing AC i need to insulate the firewall before mounting the unit and id like the air to stay in the cab . I need to insulate above the headliner, behind the door panels, under all the carpet up to the fire wall. Now whats the best way of going about this?

I like the sound of the DYNAMAT but do i really need to put Zilla Mat over it?

Part 3- Also which kit size is enough for a standard cab?
Dynamat XTREME
2nd link has steps in installing which products where PDF file
http://www.dynamat.com/download/2010...heet_Print.pdf


Then there is the Zilla Mat
Zilla Mat Extreme sound deadener

After reading it seems like DYNAMAT will work just fine on its own. Does anyone have any input on this at all?


Part 4-

Also! What can i spray or put in my door itself to preven rust and to help with the sound and vibration issue?

Part 5-

Again i also need a thread about how to install felt in the door and wind wings cuz my old rubber and felt it shot to heck

 

Hi SuperDuty93. I responded to the other thread on sound dampening but it looks like you have some other questions that perhaps I can clarify or at least give you my opinion. In regard to the Zillamat over the Dynamat, I think there is a misrepresentation. I chose to use the Zillamat product INSTEAD of the Dynamat product on the floors, headliner, etc. This is the product that has the self adhesive foil backed butyle rubber. I did a ton of research and made a decision that the Zillamat was as good if not better than the Dynamat but cheaper. I think people pay a little more for the Dynamat name. I did NOT put the zillamat OVER the Dynamat product on the floors and headliners. I did, however, put the 1/8" mass loaded vinyl coupled to the 3/8" closed cell neoprene insulation OVER the zillamat. Based upon my research, it seems like the zillamat stuff will stop the vibration but you still need a layer of insulation to act as a noise barrier. Here is a link to the MLV product that I used and it was the best priced stuff vs. Secondskin or other comparable products: Mass Loaded Vinyl 48"W w/Closed Cell (per foot)-Super Soundproofing, Co.
Some folks used the bubble or open cell insulation but IN MY OPINION, to get the best Cadillac quietness, you need to use the closed cell. The product I used weighs about 1 pound per sq ft and it is dense.

Now, I did use the zillamat on the doors and then covered it with the Dynamat DURALINER. 2 different products for different reasons. The MLV that I used on the floor is too heavy for the doors so in lieu of the MLV, I used the Dynamat Duraliner product which is made for the doors. The door kit has about 25 sq ft in it and designed for doors.

In regard to what to use to spray in the doors, etc., I used the Duplicolor Professional (not standard) rubberized undercoating that has the sound eliminator in it for under the cab and inside of the door cavities. I made sure to cover the drain holes with tape before spraying it, and then removing the tape. I didn't have any rust issues but if I did, I would have either removed the rust and/or treated with POR before applying the undercoating. I did not use any of the undercoating inside of the cab area. This worked well on my 72 and 74 trucks and am very happy with the results but I am sure others have different opinions regarding products. I tried to research all of the products in the market for superior results AND best pricing. Good luck and keep us posted!