Here’s a set of 10 Hi-Res dirty rust and grunge. Check out the previews and if you think you can use them, you can download all the textures zip files at the bottom of the previews.

Free Rust and Grunge Textures
Here’s a set of 10 Hi-Res dirty rust and grunge. Check out the previews and if you think you can use them, you can download all the textures zip files at the bottom of the previews.
Free Rust and Grunge Textures