- Joined
- Sep 29, 2017
- Messages
- 2,251
Hallo guys. What do you call the blue liquid I see on YouTube videos they use that makes metal turn black in color? They use it to prevent rust I think.
Michael
Michael
Maybe I think I understand something I don't (could have read it on the Internet and everything's true there). My understanding is the actual surface treatment is not a good rust preventative, black oxide is only good for 10 hours of salt spray, but the porosity allows oil to soak in, which is the actual preventative. Does that follow with experience using cold blue products? It does look cool on shop made tools - but hey, that's also on the Internet.