These are some old Slingerland lugs I cleaned up. At first I thought they were a lost cause. They are nickel plated. I'll be honest here. I tried everything to remove this pitting. Dawn soak, CLR soak, Bar keepers friend with a tooth brush. Nothing worked. Last ditch resort was a SOS pad. I figured I had nothing to lose. A few light scrubs on 1 lug to test, slow and steady. Checking progress along the way. You can see the pock marks from the pitting remains. But they cleaned up pretty well. And I used them all. By far THE worst lugs I've tried to save. The use of steel wool is a big no no otherwise. I think the soap in the SOS pad helped quite a bit. These are old cell pics sorry the quality is not better. I can take some new ones later if you like.
Looks like nice results, Glenn! I've used a light scrub with 0000 steel wool (and I emphasize light...and 0000 is the least abrasive steel wool) on a few parts before, such as tension rods and other parts that were quite rusty. However, I'd never have thought to use SOS pads. As the guys on the Guinness beer commercials used to say, "Brilliant!"
I think a soak in mineral water and white vinegar for 24 hrs can do wonders.
+1 here on soaking in white vinegar. Although, I generally don't add water and only let the parts soak 10-15...but that's for small rusty parts. Can't say that I've done that with lugs...or that I've attempted to clean lugs that were that pitted.
Again, good luck to you Erik! Let us know how they turn out.
Lynn