I am looking for advice for cleaning up verdigris stains on an old "made in NYC" bag that I am currently working on (that green discoloration that comes from the deterioration of brass.)
I know that I can use metal polish to remove the verdigris from the metal but I don't know how to remove the green staining from the leather around the buckles and strap connectors. I found the procedure below online for removing verdigris stains from leather. Has anyone tried this method or do you have some alternative suggestions?
I have also read that you need to "seal the metal" to keep the discoloration from coming back; but I have no idea how to seal the metal! Any advice would be appreciated, thanks in advance!
http://www.ehow.com/how_6386111_clean-verdigris-stains-leather-brass.html
Leather items trimmed with brass hardware have a classic look about them. If you've inherited or purchased an older leather item, you may have found green stuff where the brass is in contact with the leather. This green stuff is a chemical called verdigris that develops from moisture on the metal that comes in contact with the leather. Verdigris stains can be stubborn but are removable with a little gentle persistence. Using supplies from home, you can remove verdigris stains from leather without damaging the material.
Things You'll Need
White vinegar
Baking soda
Small bowl
Old toothbrush
Cotton terrycloths
Water
Leather balm
1
Instructions
Combine baking soda and white vinegar in a small bowl to create a paste the consistency of ketchup. The mixture will foam for a bit. This combination of ingredients creates a mild acetic acid that helps to safely remove the verdigris from the leather.
2
Apply the paste with an old toothbrush. Scrub gently, working the paste into the leather's pores. Allow the baking soda and vinegar paste to sit on the verdigris stain for about five minutes.
3
Wipe the cleaning paste and verdigris stains away with a clean terrycloth dampened with plain water. Repeat step 2 if any verdigris remains.
4
Dry the leather with a clean cotton terrycloth, removing all surface traces of liquid.
5
Rub leather balm into the leather where you treated the verdigris stain to help condition the area now that it's clean.