Being a returnee to modelling, and a first time weather, I've been experiementing. Anyway, I needed to make the rear exhaust on my Tamiya Churchill look rusty. This looked really good, so I thought I'd say how I did it. First I used Humbrol number 11, silver, brush on, roughly and thick. When that dried, some number 9, tan, again, brushed on roughly and thick. As I finished, whilst freshly wet, I smeared CML Dark Rust powder on it (with my finger). When dryish I roughed the paint, so a little silver just shows, and then ran a silver pencil along he edges.
I am hoping for some comment, and other ideas on how to make rust?
The picture shows the main exhaust, and the two tubes, both attached to the sprue.