I soaked my copper in vinegar/salt. After 24 hours it had a lot of turquoise and green patinas, but it all wiped off, leaving dull copper. Why did it wipe off?
Md Ariful Islam
বিএসসি(সিএসই)
,
এমবিএ(মার্কেটিং)
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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
,
পিজিটি(মেডিসিন)
A patina is not like a paint. It wears off. It always wears off. You can seal it with microcrystalline wax, but it won't stop a patina from eventually wearing off.
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