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Fast Rust Pits?
- Thread starter Hankins
- Start date
- Joined
- Sep 5, 2010
- Messages
- 2,691
You can force a patina in many ways, acid is the usual. Vinegar, mustard, various fruits can do it, as well as beef/fat.
Pitting might involve more harsh chemicals or acids. I would do a search here on patinas, there's lots of threads that discuss the process.
One of those involved gun blue and chlorine bleach. Please take caution when doing that one, read about it and do it outside! But, the results are some cool etching and some pitting.
If possible you could add some hammer marks, beat with a chain, or similar, then do some etching and a patina. I've just never done all these together. Or heat the metal to get a scale? Maybe you could experiment a bit on small pieces before commiting to the main job.
Pitting might involve more harsh chemicals or acids. I would do a search here on patinas, there's lots of threads that discuss the process.
One of those involved gun blue and chlorine bleach. Please take caution when doing that one, read about it and do it outside! But, the results are some cool etching and some pitting.
If possible you could add some hammer marks, beat with a chain, or similar, then do some etching and a patina. I've just never done all these together. Or heat the metal to get a scale? Maybe you could experiment a bit on small pieces before commiting to the main job.
- Joined
- Oct 27, 2010
- Messages
- 8,721
I would expect Rick to chime in on this one, but you should also check out the maintenance, tinkering, and embelishment sub-forum. Lots of info over there about forced patina and false aging.
-Xander
-Xander
- Joined
- Jan 9, 2011
- Messages
- 16,432
Plum Brown and bleach looks awesome for an antique aged and pitted look.
I just treated a group of knives this way, I'll try to post some photos soon.
I just treated a group of knives this way, I'll try to post some photos soon.
- Joined
- Jan 9, 2011
- Messages
- 16,432
Try the bottle directions on the browning and then a 30 minute bleach soak, clean and then repeat.
30 minutes is a long time but I do this outside and I think the cooler the weather the slower the reaction. 5 minutes may be plenty where you are.
30 minutes is a long time but I do this outside and I think the cooler the weather the slower the reaction. 5 minutes may be plenty where you are.
- Joined
- Jan 9, 2011
- Messages
- 16,432
http://www.bladeforums.com/forums/showthread.php/841067-All-kinds-of-chisel-grinds...-sneak-preview
These were treated with the brown and bleach, check the "pre glue up" photo on post #3, the first photos only show the post HT finish.
They have very light pitting and a niced aged look. Sepia finish, that is really what they look like; a sepia photo.
Better photos soon, the epoxy is drying right now.
These were treated with the brown and bleach, check the "pre glue up" photo on post #3, the first photos only show the post HT finish.
They have very light pitting and a niced aged look. Sepia finish, that is really what they look like; a sepia photo.
Better photos soon, the epoxy is drying right now.
Patina is one thing. Rust PITS are something else. Just a silly guess, but what if you lightly hammered a few sand particles into the surface of the blade to get small pits, and then apply the patina to the pits. I would start with just a few pits and see if it's enough rather than have to sand too many out.
Strange, isn't it, that when you WANT surface irregularities and imperfections you have to work sooooo hard to get them.
Try "tricking" the blade. Talk about how you want it to be a perfect mirror finish when the blade is out and can hear you. "Accidentally" drop it behind the work bench or just on the floor, and viola! the entire surface will be transformed to something opposite of a mirror finish. I think blades are like teenagers. They do the opposite of what you want of them if left to their own devices. ;-)
- Paul Meske, Wisconsin
Strange, isn't it, that when you WANT surface irregularities and imperfections you have to work sooooo hard to get them.
Try "tricking" the blade. Talk about how you want it to be a perfect mirror finish when the blade is out and can hear you. "Accidentally" drop it behind the work bench or just on the floor, and viola! the entire surface will be transformed to something opposite of a mirror finish. I think blades are like teenagers. They do the opposite of what you want of them if left to their own devices. ;-)
- Paul Meske, Wisconsin