[Cleangreen68]

looking for advice on how to remove some surface rust built up on the inner side of my 68 fender. The backside is easy to wire brush or grind away but its the lower area down between the door and wheel that has an inner skin that I need some help with. what have you guys done to clean that out? i want to get the fender cleaned up and prepped before I hang it on the car. its just surface rust and rust free otherwise.
Also what would be the best way to protect its backside? I dont have a big enough compressor (or a gun for that matter) to be able to shoot it. any alternatives?

[dinger]

I am not really understanding what you are attempting here. Is the metal lapped and you can't get between the 2 surfaces? If it is wire brush-able, I would clean it up, epoxy primer it, and then paint. If it is lapped, maybe spray some Ospho in there, let it set for the recommended time, rinse well and then epoxy.

[Cleangreen68]

Thanks, it was somewhat hard to explain but yes, when I removed the Buick fender the back side has a section near the bottom that has an inner layer, with about .5" gap between it and the main outer skin of the fender. Maybe its for extra support, but it has some surface rust built up on it and I wasn't sure how to get it out of there since I couldn't get grinders, wheels etc through the thin space. I'll try to post pics tonight.

[kleen56]

If it's not to extensive in rust, believe it or not but Coke will remove the rust. I've also used a product called Naval Jelly, with a small brush.