C-L-R (Calcium-Lime-Rust Remover).

Mix 10% C-L-R to 90% water and soak the metal parts in it from as little as 5 minutes to as long as 30 minutes. Keep an eye on the parts so they don't turn black.

This white rust is a zinc oxide....if you search you will find it is a big problem for the construction industry. I read some research papers about removing it and good old vinegar (acetic acid) worked as well as anything. Follow it up with a magic eraser.

Finish off with a wipe down of rubbing alcohol and wax or everbrite, which also makes a commercial product for this to clean, and self level coat.

I start with vinegar, then move to CLR, etc...

I did an entire game with Nevr-Dull (metal cleaner wadding) because the metal underneath also needs to be cleaned and polished regardless. Ultimately it's as much about elbow grease as it is the cleaner you choose.

Explanation of the formation of white rust: http://www.azom.com/article.aspx?ArticleID=1220

Wonder how this cold galvanizing spray works to restore/protect a corroded part:

https://www.rustoleum.com/product-catalog/consumer-brands/stops-rust/cold-galvanizing-compound-spray

Awesome Find, Thank you!

Ill be picking some up! They can be found in Ace and local Hardware stores...

Cant wait to try on metal that sits by the salt water ocean air.

I've used the cold galvanizing spray on our galvanized boat trailer.
It stays a little rough to the touch & is like a light gray flat spray paint.

exactly what i found as well .. if grey primer is the look you want its perfect

C-L-R would have cleaned up that washer nicely.

Maybe even Evapo-Rust would have worked.

i have had great luck with a light wire brushing (one that wont scratch it) then I polish with some autosol paste, sometimes it looks almost like chrome when done.

Good info for the future. Thanks guys.

We looked at a pinball with this type of stuff EVERYWhere.... Metal- Switches...ETC... The price way to high anyway... But can this be cleaned off electrical stuff.. Or does someone just RUN AWAY... ????? THX>