I asked if anyone knew of an inexpensive product that would sound-proof the F150 doors.

Someone said HOME DEPOT carries an inexpensive Sound Deadening material. I looked and looked and didn't see anything. So, I asked one of the guys and he showed me an interesting product 1/2-inch thick in a 4 by 8 foot sheet. It's like a "fiber-board" product that is called Sound deadening Board. I bought a sheet for only $6.39.

After rolling on some primer or paint, 8" X 8" pieces, and the insides of the doors, can be sprayed with 3M automotive adhesivie. Then, each piece can be inserted through the small hole in the door to be "stuck" to the outside sheetmetal skin.

I have looked in there when installing my new mirrors and it looks like there is plenty of room for the window to move.

What do you think? Will it work?

Bill

 

Might work...However if the fiber board is made of wood fiber, its possible that the following could happen;
Because the 'atmosphere' inside the door is not always the same as the one inside the truck, moisture could build-up in the door cavity. Its possible then that the boards could hold moisture and be like wet sponges attached to the doorskin. They could swell and the fiber could loose its bond, and through repeated door slamings some of the fiber could come lose. The lose fiber could collect at the door cavity bottoms and plug the drain holes, sealing-in any ambient moisture and rusting the doors from the inside-out!

If it was my truck, I wouldn't do it.

 

I think what the original source meant is the "feeze guard" (not the proper name, I'm sure) roofing material that is used in leiu of the first row of tar paper near the eave of a roof. The stuff is sticky on one side and is pretty thick. There are several other threads that discuss this topic.

Seems like it would work fine and sure wouldn't be the rip-off, price-wise that the "real" stuff is. I think a whole roll of this roofing mat is like $40...you could do 100 trucks with that much.

 

If you want quality, cost-effective sound deadening material that is a lot less work than what you described, go to:

http://www.raamaudio.com

It's called RAAMmat60 and it is awesome!!

Rick sells the stuff for 1/4 the price of Dynamat.

Worst part is the shipping... (28 lbs. per 62.5 square foot roll !)

Stuff is extremely dense, adhesive is really strong and you can cut it with a good pair of scissors.

Aluminum backed, 60 mils thick (40 mil also available)

15" wide x 50ft. long.

Less than $100 per roll...

Did my entire truck with 3 rolls (complete floor pan, outer and inner door skins, rear of passenger seating area, inside subwoofer box) and the results were nothing short of fantastic. Truck is so quiet on the street that almost everyone that has been in it asks me how I did it !!

No more sqeaks or rattles and the sound system never sounded better !!!

 

Sounds like an inexpensive fix but, I have to agree with the thought that the material will swell and eventually be more of a problem than a help.

Bite the bullet and get something that is made for the automobile...

RP

 

I have used carpet padding in the past, but only inside the cab. ie. under the factory carpet, headliner and back cab wall. You may be able to put them inside you doors but I agree with Oldv8 that you could develope a rust problem over time. This is very cheap or sometimes free from carpet stores and works well