Thanks Waldo
That is what I have just very easily removed. Water has obviously penetrated the coating, travelled underneath and I have rust in some places; I wondered if this was a finish put on by a past owner - clearly not!
-
John
On my car water has also gotten under the black paint and it comes off in large flakes. Rust has probably lifted the bottom left corner of the windshield, so it is now de-laminating and turning white.
I have just gotten a brand new windshield and will be putting it in when I paint the car.
Once the old black paint is removed, I will get rid of the rust with phosphoric acid (to convert the rust). Once I have bare metal, I will use an epoxy primer to seal it. There is a tendency to have water standing in the lowest points below the windshield, but the epoxy primer will make it completely water proof. Besides, it provides and excellent surface to sand, and the paint to adhere to.