I'm about to put a new windshield in my 47 Lincoln in a few weeks. I pulled the inside garnish molding off to have a look see, and found some flaky rust and some light pitting at the base of the gasket. Not rusted through yet, so I want to stop it before it does. Figure I'll hit it with a wire wheel to get the flaky stuff off, then coat it with something. Which would be better, POR 15, or epoxy primer? It will be hidden by the garnish molding once I put it back on. Dash is black, so something that color would blend in if any of it was below the molding. Or do you guys have a better low buck suggestion?
I’d pick the Por15. I have used it many times with excellent results. it doesn’t stand up to direct UV light exposure but inside and underneath it is very effective.
Get some rattle can zinc / etch Dupli-color/ rustoleum also makes one also. I used por for ten years... An have seen First hand... It's ****! Definitely, Epoxy over a zinc base.. 38 yrs. Doing auto body professional.
I use POR in very few places but that is one place I would use it. As stated, it doesn't like UV light AND most other coatings won't adhere to it.
Toughest **** known to man. Almost like porcelain. Works perfect for what you're doing. I use the 3M brand myself, but when I googled it the sika popped up with the daubers
No way to blast it, even a wire wheel will be dicey up around the headliner, one wrong move and I'm buying a headliner. I guess POR 15 it is then. That was my thoughts too, I just wanted to run it by you guys in case I was overlooking something.
Need to kill the rust. Wire wheel and acid treatment, or blasting, or it will come back to haunt you. Get clean bare steel and then epoxy it. Especially on a windshield channel. I've given up on por15, have a shelf of their products, prep products etc, follow the directions - it has still failed me multiple times, couple years later it's a problem again. Since you have concerns on headliner, give Naval jelly a try, wire wheel as much as you can, tape everything off, the thick consistency of Naval jelly will allow control of where it's applied.
Now there was another idea I had also, was hoping someone would mention it. I have some OSPHO that has been sitting on the shelf for about 10 years waiting to be used. Brushing on some Rustoleum is easy... That might actually be better than fooling with the POR 15. Windshield channel is strange to me on this car. Gl*** and gasket mount against the channel from the inside of the car, then it's held in place by the garnish. All the ones I've done before had a gasket that fit over the pinch weld, you roped the gl*** in. The gasket is a U channel. I thought Boos-Herrel had sent me the wrong one, so I called them and the knowledgeable fellow I talked to walked me through how it installs. I figure he knows what he's talking about, he has parted out and sold Lincoln parts for years. Yes, I don't want to destroy the headliner by letting a wire wheel grab it. It fits under and is held in place by the garnish. I can pull it back a little, but don't want to disturb it no more than I have to.
How about KBS. That stuff is like steel after it dries. Dropped a glob on the cement floor, tried to s****e it off after it dried and it took the cement with it.
I don't think I have much to worry about up top, the flaky crust is on the bottom close to the dash. Rest of the metal looks good, a light brushing by hand should take care of it. I do want to seal all of it though. Might as well, I want it to outlast me.
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