Smart #8 Deeper rust removal needed?

[JAdam]

Hi all. First post here. Using the e-tank and then a separate quick vinegar bath and scrub I’m close to finishing the restoration of this vintage Smart #8. The top side has come out beautifully, but I’m unsure how much further I can take the bottom? Is this spotting on the bottom referred to as “deep rust”? There is no more carbon buildup. Will a few more vinegar baths and hard scrubbing even it out a bit more? Any suggestions? These are pre-seasoned photos.

 

[Doug D.]

Black stains such as these are an artifact of previously active rusting. Three options:

Spraying directly with 100% white vinegar and scrubbing with steel wool in short sessions (rinsing thoroughly between each) can minimize them. Downside is that dripping vinegar can leave streaks elsewhere.

Soaking in a product called Evapo-Rust. Downside, expensive for one pan.

Ignore and let them blend in with seasoning darkening over time.

https://www.castironcollector.com/cleaning.php#finish
https://www.castironcollector.com/cleaning.php#other

 

[Jeffrey R.]

Sometimes you just have to accept the fact that some spots will not lighten. Also wear surfaces take on a different color/ tone and texture, sometimes appearing darker. On top of what Doug wrote, get yourself a handheld stainless steel wire brush and work it. SOS pads have their place, just not with your issue.

Years ago I picked up a nice looking skillet with a fair amount of seasoning that showed no issues. Once out of my lye tank it had a light surface of rust from before they seasoned it. It just goes to show how a good seasoning will cover an issue.