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Discussion in 'Clock Repair' started by TEACLOCKS, Oct 27, 2018.
Would you clean this bronze statue ??
If so how
How dirty is it?
If it were mine, I'd use a toothbrush and dish detergent...if I decided to clean it.
More like take the patina off ??
The rule of thumb when it comes to bronze is never polish it. Leave the patina.
Dust it - yes. Polish it - no. Light cleaning - maybe, but be careful!
Agree with bang. Sure it's bronze, and not spelter?
Most likely spelter. To me the patina is very nice. Just needs the dust out of all the crevices.
Remove the patina !!!!!!! Oh my.
I do what Bangs said. I use Windex and brushing + a little low pressure compressed air.
This clock is a nice one.
In the past spelter has often been overlooked by art dealers in preference to bronze. However, pieces of spelter, dating from the early twentieth century to the present day are now much sought after. The beauty of its finished patina – when spelter is cast it is produced without flaws – creates sculptural works that are perfect in form. The quality of spelter is in its casting. After casting the body of the work it can be painted or gilded. This exact science of production has pushed spelter to be as collectable as bronze because of the higher quality of finish.
On an artwork in bronze the ‘patina’ refers to the gilding or chasing, or the chemical oxide process resulting in a green coloration. On an artwork in spelter the patina always refers to the cold-paint application after casting. The patina on spelter, when applied by an expert craftsman, can be of exceptionally high standard, however bronze is recognised for its adaptability to gilding, and chasing, and cold-painting.
I would think you should leave it.
Patina usually refers to the appearance that can only be produced by the passage of time and normal useage.
To be clear, this is saying that for Spelter, the patina is the paint that was applied after creation, or the first paint job.
So with time, bonze oxidizes to a nice color we call patina, and the spelters oxidation process causes a deteriorating of the paint.
After a hundred years, bronze looks nice, but spelter may have all its patina (paint) flaking off. That was the case with my Ansonia mercury, the majority of the paint was gone, and what was left could be taken off with a light scraping of your fingernail. So in restoring the piece, repainting is placing the patina back?
I believe the "green coloration" on bronze is known as "bronze disease" and should be rectified as soon as possible. I guess it technically is patina, but will eventually destroy the object, as opposed to the chocolate color that bronze develops through age and is valued by collectors.
Patina can't be "put back" and it has nothing to do with paint. Willie X
I would be careful with Windex. It contains ammonia, which could remove the "patina" (whatever patina is).
I thought PATINA was dirt
Some people might try to pass dirt off as patina, but Willie's definition of patina is as accurate and succinct as I have heard.
Patina seems to mean different things to different people. Most people agree that patina on brass/bronze/copper is a green coloration that is caused by long term reaction of the metal to environmental contaminates. What you have on that clock is oxidation.
My personal opinion is that the bronze is beautiful as-is. To avoid damaging the oxidized layer, I would scrub it gently with a toothbrush wetted with distilled water.
Wash your hands immediately before you handle it. I would use a mild solution of Dawn and a Toothbrush and or a clean cotton cloth. If your water is hard, use distilled or filtered water to rinse and then dry immediately. How do you know it is made of Bronze?
Exactly! That was what I was driving at. So if it is Spelter then there is no patina, it is just paint.
No necessarily. Spelter can be plated or flash plated. If it's plated it's probably very thin and easily damaged.
What is Patina
I think it's pretty funny that Wiki labeled this a "Chicken Vane" in the link: Patina - Wikipedia
What ....... You've never seen a chicken with a dragon's tail?
No, but it would be pretty bad a$$ on the right roof. Happy Halloween!