Weathering metal?

Hello Blenders

I am building a space ship (here) and want to add some weathering to the front. Things like bumps and scrapes, not oil marks or stains.
I have found many tutorials on rust and grunge but can’t find any on scrapes.
Anyone have suggestions?

the main rule for scrapes, is to keep them mostly to the edges and corners of things. since they are most exposed, they get dinged and scraped more. usually you’ll want to use white, since primer is white.

Thank you, I will try that