I am about to install a new carpet and sound deadener on my '67 442 that I purchased from OPG..I know that there is alot of people that do not like the "tar asphalt" sections they sell, but I want to know if this is supposed to be glued down with adhesive? I also heard about using a heat gun as well.
Any thoughts on this?

 

The tar paper deadener they sell specifically for the Olds is useless. Go for Fatmat. Heat it to 200 degrees, make sure the metal is clean and dry, apply it.
Check out my 72 442 build thread. I went a bit over the top with heat/sound insulation, but the car is as good as anything new.

 

Are you sure? This stuff is pretty thick. I don't know...It smells like roofing shingles..

 

Yes, my opinion.....FWIW


[QUOTE=GM MUSCLE;709551]Are you sure? QUOTE]

 

I am sure when the factory applied these, they were just tossed on at will, no glue.
Mine were all over the place but stuck after many years in the south... Made me think they moved all about when the car went down the line and the carpet installed.
To keep it in place, you could heat the metal and stick it, as it is just thick tarpaper..

 

I installed the tar paper stuff in my convertible back in 1990. I really can't remember if I used any adhesive, but I don't think I did. Anyway, after a couple summers here in Phoenix that stuff is permanently bonded to the floor pans. Seems to work OK for a heat shield as my feet have never been hot, even when it's 110º out and the pavement is way hotter than that.

 

Thank You..

 

Thanks for the information!

 

X2 on Fatmat. You don't really have to heat it, it has an adhesive backing.

 

I did the dynomat and cleaned the hell out of the floor before applying. I heard if it does not stick it will not stop the vibration which transmits the sound. Seams quieter so I am happy.

 

Dynamat. Silver but once its down, its down and IMO not too thick

 

When you guys installed your Fatmat or Dynamat, did you just put it on top of the flat harness going to the rear of the car? Or under?

Tom
68 442
70 F85

 

I installed mine with the Fatmat on the metal floor, and wiring above it. The Fatmat sticks pretty good, and will adhere more as it get hotter out. I didn't want to have to fight it, or cut it, to get to wiring if necessary.

 

Put the wiring on top of the sticky thin stuff in case the wiring needs service.
I cut out channels in the thicker foam stuff to reduce carpet bulge.

Here is my progress at installing dynamat extreme...
https://classicoldsmobile.com/forums...html#post60544

Here is installing dynaliner...
https://classicoldsmobile.com/forums...html#post63224
(I had not cut the channel in the center piece yet)

 

Fatman works I installed it in my 65 and it makes a world of difference. I didn't heat it I just used the pizza roller from the utensil drawer to install it (had to get the wife a new it was black when done) . I made the interior quieter and got rid of a lot of rattles and buzzes that it had.