How does the tannin in cedar react with metal stands for animal sculptures?

Cedar wood contains natural tannins, organic compounds that can react with metal stands used for animal sculptures. When tannins come into contact with metals like iron or steel, a chemical reaction occurs, leading to discoloration and corrosion over time. This reaction is accelerated by moisture, causing rust or dark stains on the metal. To prevent damage, artists and collectors can use protective coatings like sealants or choose stainless steel or aluminum stands, which are less reactive. Understanding this interaction helps preserve both the sculpture and its base for long-term durability.