Hello Chris ..
Splashes on the lift I did with the drops of pigment. In the same way as in the pictures. First, paint detail on a dark rusty color .. I have no pictures when picking paint pigments, unfortunately, I forgot to do ... Then the weather conditions, etc. ....
Rysy i odpryski innym sposobem ..
Paint on a rusty color, lightly greased with petroleum jelly ...
Now the color right - wash.....
When the paint is dry - do scratches, rust should be underneath ...
You can water (acrylic paint), short brush..
Atmospheric conditions, traces of use, etc ...
Just try, for now I will work with lubricated with petroleum jelly. Perhaps it would be a good way to chipping ...
Andy