Playing with Weathering...

Did you lay it on its side or upright while the wash dried?

Just noticed this attempt by Plarailfan at combining your hopper wagon with a plarail

Hi Super, I just left it standing upright on its wheels, partly for simplicity, partly as I thought it would allow the wash to pool in any crevices much like it would if a wagon was left to the elements, thus causing rust to gather in the relevant areas as it would in real life.

I think what is needed is an undercoat/colour paint finish which then you apply the wash to. On this particular wagon it was just grey plastic with some waterslide decals, I suspect looking at was a DIY plastic kit. If the model was painted with some matt colours then had a wash applied I think the effect would be much better. You could also add a dark grey or black wash to the lower part of the wagon to get the effect you were talking about

I've yet to try the weathering powders, but that's for another day, baby steps till I perfect my techniques

---

well done nigels - you are very talented

Not sure about that, I'm pretty much starting out with weathering, normally I've instead gone for perfect finishes, but I'm always up for new ideas