Stained headliner

[BrentF]

I notice that many 911's of the long hood vintage have stained headliners, usually around the perimeter. What's the typical source of the staining?

[72targa]

Possibly glue? Pics would help...

[bob joyce]

probably condensation ... the headliner away from the frame would dry out harmlessly , but the moist material on and near the frame would interact with the sub straight, glue, paint ,metal.
cars that i have had that were stored inside did not developed discoloration .... cars that i had that were parked out side , did develop discoloration..

[BrentF]

Here’s an example (not my car):

[NorthernThrux]

Wicking of moisture from the seals is my bet. Where there are obvious leaks on cars, such as when I bought my car, the discolouration extends even further.

[Mike Baum]

Hey Brent - I had the same with the original headliner in my 1964 Giulia TI. With age, it is usually caused by dissolving glue, especially around the borders and then it appears like in the picture. Since my original headliner was perfect otherwise, my interior person went ahead and re-died it and it looks as new.

[BrentF]

Mike: I like your diagnosis. Good to know there’s a simple cure!

[bob joyce]

Yes, respraying is a great way to go, It not only cleans up the headliner but also shrinks a bit of any saggy areas.... The important thing to do is a very good masking job.