Scratch Tools (*.sbsar for Painter)

https://gum.co/PainterScratchTools
https://www.artstation.com/pirog/store/LK2D/scratch-tools-sbsar-for-painter
An ultimate set of tools which will save your time on adding scratches.

Including various hand-painted and procedural stencils for paint-over, generators to quickly produce base layer for further detailing and powerful brushes. All together it will save a lot of your time and help to get better result with less effort.

Additionally it's highly recommended to have Rust Spreader, which will push the result even higher:
https://gum.co/PainterRustSpreader
https://www.artstation.com/pirog/store/loNv/rust-spreader-sbsar-for-painter