If your vehicle is newer you may encounter a fitted vapor barrier inside the door panel that will have to be removed first in order to clean window tracks.
Car door panel vapor barrier.
It provides a degree of water protection to your inner door and is designed as a vapor barrier.
If left unchecked this moisture will work its.
One example of a coverlay oem style inner door panel.
12 foot roll universal fit provides water vapor protection this is a universal fit paper shield with a black plasticized film on one side.
645 470 door panel moisture barrier protect your interior door panels with our precut easily installed moisture barriers.
Over the course of years they can become brittle and the adhesive will break down and no longer make a good seal.
Slight amounts of moisture will inevitably seep in around your door and window seals.
When this happens you might find water puddles in the car have a constant damp smell find water stains on the lower edges of your door.
It is installed between the door panel and the door.
It comes in a 12 feet roll and is shipped in a 3 inch tube for protection.
You are correct art1966.
Just behind the door panels are sheets of plastic to keep moister from creeping into your vw.
This is a universal fit paper shield with a black plasticized film on one side.
It provides a degree of water protection to your inner door and is designed as a vapor barrier.
Whether the barrier piece is styrofoam based or a plastic sheet it will typically be glued on with a rubbery sealant.
It is installed between the door panel and the door.