Ethnographic Arms & Armour - View Single Post

ariel · 6th December 2016, 03:32 AM

Thanks Alan.
My problem is not so much with rust: that's what tannic acid is for. At the most I might consider removing a little bit of loose scales. Rust converters ( tannic acid + polymer) convert soft rust into very hard tannate of iron. I have a 15 century Bauernwehr that was preserved that way: black is beautiful!:-)

In your attempts you actually REMOVED rust, but tannic acid NEEDS rust to form hard substance.

My main problem is lime and some other mineral crud. This will not be affected by the tannic acid and may actually leave untreated, unhardened spots.

Any experience using vinegar? It removes lime stains like magic: I used it on tea kettle, shower glass doors etc with great results.

6th December 2016, 03:32 AM	#3
ariel Member Join Date: Dec 2004 Location: Ann Arbor, MI Posts: 5,503	Thanks Alan. My problem is not so much with rust: that's what tannic acid is for. At the most I might consider removing a little bit of loose scales. Rust converters ( tannic acid + polymer) convert soft rust into very hard tannate of iron. I have a 15 century Bauernwehr that was preserved that way: black is beautiful!:-) In your attempts you actually REMOVED rust, but tannic acid NEEDS rust to form hard substance. My main problem is lime and some other mineral crud. This will not be affected by the tannic acid and may actually leave untreated, unhardened spots. Any experience using vinegar? It removes lime stains like magic: I used it on tea kettle, shower glass doors etc with great results.