Purpose of fuel tank mat

[64SF]

Not sure if I’m descending correctly but what is the purpose of the fiber type mat between the fuel tank and the trunk pan. Thanks

 

[beanhead]

Corrosion protection, and an insulating layer to keep the body metal from rubbing directly on the tank metal. At least that what the old timers always told me..sounds good, right?

 

[Pikser]

I was told it was to help stop static electricity.

 

[moparedtn]

Corrosion protection, and an insulating layer to keep the body metal from rubbing directly on the tank metal. At least that what the old timers always told me..sounds good, right?

Yep. You know, that whole thing about flammable fuel stored in steel attached to other steel bit....
Besides, if the tank was rigidly attached to the body, you'd get to hear all sorts of cool sloshing sounds
reverberating through the car.

 

[5.7 hemi]

The tank is grounded.

 

[SgtSuperbird]

It's already been stated, but to prevent electrolysis (two dissimilar metals coming in contact and corroding), anti-rattle/sound deadener, and prevents wear to the tank...my two cents.

 

[Dibbons]

I used a large sheet of the "cork" gasket material once when I was not willing to wait for the factory correct material to be shipped.

 

[alfaitalia]

Corrosion protection, and an insulating layer to keep the body metal from rubbing directly on the tank metal. At least that what the old timers always told me..sounds good, right?

Corrosion protection? No...Hopefully that was never a reason behind it as they are the cause of most B body trunk floor panel sales!

 

[Dennis H]

Trap moisture and rot trunk floor.

 

[moparedtn]

Trap moisture and rot trunk floor.

 

[khryslerkid]

Could you imagine the squeaking and other noises that metal on metal would make without one?

 

[5.7 hemi]

Roofing paper works well!

 

[kbfallon]

Yep. You know, that whole thing about flammable fuel stored in steel attached to other steel bit....
Besides, if the tank was rigidly attached to the body, you'd get to hear all sorts of cool sloshing sounds
reverberating through the car.

Without the Tank Pad and the gaskets under the straps......Annoying Squeaks.

 

[RoasterStrudel]

Looks like this has been answered many times over, but agreeing, it's a good thing! Even though most of these cars are driven in optimal conditions, it does help insulate noise and protect that rust-resistant plating on your tank. Little grits n' stuff from road debris can get in there and chew up both surfaces. Though it would probably take a long time to see serious damage, some kind of insulator is a still good idea.

 

[Should be playing golf]

Its for vibration and moisture control between the surfaces so the trunk floor doesn't rot out,

 

[Should be playing golf]

Simple as that!

 

[YY1]

At least it's not lake fords, where you place the spare and your luggage/cargo directly on the fuel tank.

 

[alfaitalia]

Its for vibration and moisture control between the surfaces so the trunk floor doesn't rot out,

Lol...so the main thing it's designed to prevent is the thing it causes most...rust!

 

[BLK 68 R/T]

Lol...so the main thing it's designed to prevent is the thing it causes most...rust!

Corrected. It’s for vibration and moisture wicking so the trunk floor rots out quicker.