• interrobang@lemmy.blahaj.zone
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    8 months ago

    No, patina is a thin layer of oxidation on top of the actual material from contact with the air.

    Rust is corrosion from air + moisture, and causes pitting and flaking. Patina should just sit over the surface, but not distort the thing it’s on.

    There is more nuance to it, but patina is on top, rust is the actual thing turning into rust

    • Neato@ttrpg.network
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      8 months ago

      Thanks. I’ve got a metal decoration made from weathering steel that has what appears to be rust spots all over it. Allegedly it will do this onto the entire surface and eventually fade into a darker color. But it’s been pretty slow. But no putting or flaking at least.