Straight from the fields of Dixie, add that authentic dirty, grimy layer with Dixie Dirt.
Ash-original Dixie Dirt color, soft and pretty gray.
Earth-warm, earthy brown.
Charcoal-Black as night.
How to use Dixie Dirt:
Paint your piece like normal, drying several hours.
Apply wax and let it set for 10-15 minutes. You want the wax to be on the tacky side.
Apply Dixie Dirt with a brush working it into the detail areas you want to highlight.
Buff the wax to the desired appearance. The more you buff, the lighter the effect will be.
Let it cure like normal.