inside of door panels

[KD]

Does anyone know where I can get this material and what it is called?
I'm sure its for moisture protection.
KD CLC#26801

[Jeff Wilk]

USA Parts sells a replacement but its not like the original. Actually way better. But if you more like the oem its not what you want.....

Jeff

[KD]

Jeff
What's it called???
KD

[Jon S]

I believe it's just called waterproof paper

[Jeff Wilk]

Here you go. Right from their catalog.

Part Number  14.696A
DOOR PANEL WATER SHIELD- MYLAR-WILL NOT CRACK
49-85 All - 36” X 48”..........................19.14

Usapartssupply.com

Jeff

[Brad Ipsen CLC #737]

This is something that nobody will ever see so I say function should override authenticity.  All of these early schemes to prevent water vapor from warping the door upholstery panel seem to fail after awhile.  I use clear vinyl picked up at a fabric store and glue it on with 3M yellow glue.  This is then similar to what was done in the 60's.  A little history here.  The 38 big series cars had nothing at least in the cars I have seen.  The paper started in 1939 in the big series cars.  Not sure what the 38 and 39 small series cars had.  The 40 torpedo body has sheet metal panels screwed on and a very water proof tape on all of the small holes.  Very impressive how Cadillac taped all of the small holes in great detail.  They did not miss a one.  Not sure how many years this was done but I know 41's have that system.  Don't tell the judges that you have used modern materials to make the car more durable. 

[Steve Passmore]

I second what Brad has said. I have been using clear plastic behind door panels for over 30 years. Anyone worrying about that extent of authenticity that no one will ever see needs to have a few more beers .

[The Tassie Devil(le)]

I use the plastic that is used under concrete slabs, (called Fortecon down here), and tape it into position with either contact cement, or 100 MPH Race tape.   And make sure that the bottom of the plastic is inside the slots in the bottom of the panels to guide the moisture.

Bruce.

[Jeff Wilk]

Just a bit more clarity on this USA part...... It IS modern day plastic just a bit thicker than rolled plastic sheeting. The beauty of it is its stiffness which allows very easy cutting to shape and mounting without many if the worries listed by the posters here.  I have no interest in USA Parts Supply either. Ive just used this stuff and regular sheeting.  This stuff is great.

Jeff

[Lucas Feininger #15674]

I have used Tyvek & masking tape with good results. One roll of Tyvek will do about 20 cars.

[59-in-pieces]

Ken,
OEM fanatic here.
I can recall as my Dad worked on the old - what seemed to me wagon wheel cars - the inner lining of the doors was as you have shown - although I can't say what you have is OEM.
However, I was called upon to remove the "paper" which looked very close to what you have shown.
When it came time to replace the "paper", my Dad gave me what he called "Tar Paper" which was water proof paper that was used at the time behind the plaster on the outside of a house.
It had to my memory the same feel and weight and black on my hands as what I removed.
OK flash forward to today.
On my cars - as you have learned from other folks here - the plastic sheeting is the way to go.
And Steve P.- when I back slide - on what can't be seen - I prefer Scotch, 2 or 3 fingers mind you.
Have fun,
Steve B.