Over the last couple of evenings I've started working on weathering the CoG boxcar, using prototype photographs as a guide.
First off, the prototype reference photo for one side of the car:
Next, the progress so far on replicating it. At this stage it's had a base rust colours applied with acrylic paint, then the rust built up with oil paint, and then weathering chalks added to the still wet oil paint.
The next steps for this car is to seal the work so far with dulcote once the oil paint has dried, then hit the whole car with a wash of isopropyl alcohol and india ink to dull down the shine on the car sides.
