I marvelled just how patination is both art and chemistry; managed oxidation, acids

https://privatebin.net/?89e0a6075dd03507#3JzM2XzLbs8k7ofSmMR8fnvUoUxhDC7AWkShRoZBMUcU

I marvelled just how patination is both art and chemistry; controlled oxidation, acids, and waxes produce living coatings that advance with weather yet continue to be protectively sealed.