Nice! I did the exact same thing with mine when I first bought my 80 in Kansas (Salty winter roads)... I did both rear sliding windows, and the rear hatch glass because I saw the beginings of rust residue/staining starting to seep out from under the molding gaskets. I also did the entire underside of my 80 with a pneumatic spray gun. I love magnet paint products!... I busted my glove and got chasis saver all over my hand... took three days for me to finally get it all off, LOL! I've never seen adhesion like that before. That stufff works!coated it with Chassis saver