getting down to the metal ( floor )

[weq92f]

Getting ready to do some sound/heat proofing, heat mostly! Right away I've found that the carpet is glued to the carpet pad. The carpet pad is glued down to what appears to be about a 1/4" thick rubber which is glued down to the metal. There may or may not be some sort of coating on the metal as well, not sure yet.

Looks like this rubber mat like bottom layer goes up to about as high as the bottom of the A/C unit. I'm going to cut off a piece of it to get a closer look.

It is starting to look like a PO painted some kind of sealant directly to the cab floor then glued down this "rubber" like thing and so on. If I decide to rip all this stuff out and redo it with known materials, what kind of cleanup of the cab metal is necessary to place down these vibration dampening DynaMat type materials?

If it requires clean metal then I may just rethink the whole thing!

-klb

[demian5]

Originally Posted by weq92f

Getting ready to do some sound/heat proofing, heat mostly! Right away I've found that the carpet is glued to the carpet pad. The carpet pad is glued down to what appears to be about a 1/4" thick rubber which is glued down to the metal. There may or may not be some sort of coating on the metal as well, not sure yet.

Looks like this rubber mat like bottom layer goes up to about as high as the bottom of the A/C unit. I'm going to cut off a piece of it to get a closer look.

It is starting to look like a PO painted some kind of sealant directly to the cab floor then glued down this "rubber" like thing and so on. If I decide to rip all this stuff out and redo it with known materials, what kind of cleanup of the cab metal is necessary to place down these vibration dampening DynaMat type materials?

If it requires clean metal then I may just rethink the whole thing!

-klb

This is what people will be saying when they go to restore a truck with dynamat or similar...

[weq92f]

Originally Posted by demian5

This is what people will be saying when they go to restore a truck with dynamat or similar...

No doubt. LOL

-klb

[weq92f]

This "material" is actually a very thin piece of metal ( probably aluminum as it's very pliable ) with a rubber like, non sticky coating on the "top" side and what appears to be something like black silicone RTV between it and the floor pan.

I can't imagine what benefit this is supposedly providing as installed. The stuff isn't particularly heavy so it's not pretending to be MLV and it doesn't appear to be capable of providing any sort of heat barrier either ( both the RTV stuff and the metal seem to conduct heat just fine ). Maybe, maybe it would somewhat attenuate the large panel resonation/vibration, but that's about it.

What do you guys think? Ever seen this stuff or know why it's on my floor pans?

Thanks,

-klb

[weq92f]

This picture shows the driver side seat belt mount location. The metal stuff is attached to the floor pan here very tightly with whatever adhesive was used to hold it down...

[wake328]

is this possibly a carpet with some type of foil/heat shield backing?

[raggedjim]

Well, I've had trucks that were "repaired" with tin cans and roofing tar, expanding foam, and bondo. I'd lay new carpet and pad over it if the floors are solid, no sense removing it if it's working...