Foam in frame?

[soundcontrol]

Have a friend thats repairing rust on a 70 Charger, he found that the A-pillar and some other places on the car was full of foam. I never seen that before, was that something the factory did in 1970? I know some other European cars had it, but Mopar?

[7212Mopar]

I see foam between the inner hood brace and the hood skin on my 73 challenger. Don't look like seam sealer. It is painted body color.

[soundcontrol]

I see foam between the inner hood brace and the hood skin on my 73 challenger. Don't look like seam sealer. It is painted body color.

Yes, I have that also on my hoods, some kind of sealer. Never seen it inside frames or pillars though.

[HP2]

I've torn apart a lot of old mopars. Never found foam in the A pillers, rockers, kick panels, frame rails, etc. However, I could imagine someone buying a can of Right Stuff and injecting it into places hoping to insulate, quiet, firm up an old car.

[R/T's 4 R/P]

I agree, someone shot foam in there for some reason...maybe thinking sound deadening?
I'd never do that on an old car, the metal isn't treated/coated like modern cars and foam just holds moisture!

[HP2]

I see foam between the inner hood brace and the hood skin on my 73 challenger. Don't look like seam sealer. It is painted body color.

Yes, I have that also on my hoods, some kind of sealer. Never seen it inside frames or pillars though.

What is that stuff that is in between panels? I've seen it on nearly every hood between inner and outer skins and it is usually blobs that have squeezed out to some degree.

When pulling apart the front end on my '74, I noticed a similar material between the inner and out fender mounting flange. It was all dried out and nasty looking.

[HP2]

Anyone...what putty was in between body panels? It didn't appear to be standard seam sealer.

[torredcuda]

It`s more of a foam than regular seam sealer.
https://www.johnsonautobodysupply.com/duramix-flexible-urethane-foam-1310.html

[torredcuda]

https://semproducts.com/product/dual-mixtm-flexible-urethane-foam

[torredcuda]

Many newer cars use foam or other cavity fillers as sound deadening but it wasn`t used in our old Mopars.

[HP2]

Thanks for the links.

[6PKRTSE]

Not installed by the factory on this old of a car. However, they do install it on the never vehicles which just absorbs moisture and causes them to rust out even faster. Example, Dodge Ram wheel well lip areas.

[dodj]

Anyone...what putty was in between body panels? It didn't appear to be standard seam sealer.

@Cuda Cody
I queried this before and Cody gave me the name of the sealer used on the hood frame. Maybe he remembers? I don't.