Protective coating for latest project

[Suzuki4evr]

I think i might make a few more now using different materials like copper etc but keep basic design the same

I also have future plans for doing that.

 

[Suzuki4evr]

Swish the brass parts in a hot citric acid solution for 2 - 5 minutes. I flat teaspoon in a liter. Rinse well and allow to dry. They will not tarnish again during your lifetime unless reworked. Works like magic, keeps my brass nice and shinny.

Could this work for copper Gray Tech?

 

[Suzuki4evr]

Sorry I have just read the whole post and came to the realization that it probably won't work for copper. But what would, any ideas?

 

[GrayTech]

Google.... sorry, I couldn't resist.
Give it a try on copper, it may work depending on alloy. Pontiac428 said it reacts with the copper, it's been a long while since I did the research and experimentation on this process, but I use it a lot.

 

[hman]

Lemon juice (citric acid) is a traditional cleaner for copper bottom cookware, etc. And though cooking is much rougher on the copper than just handling would be, the copper does tarnish again. So I wouldn't count on citric acid for long term protection.