There seems to a growing interest in weathering models, what sort of medium used, techniques and in general, HDYDT (How Did You Do That)? May I start a thread about the topic, if it dies a natural death then so be it.
I start with a little project I did today, a SDS Models tanker. Weathered using air brush with Floquil colours of Grimy black, Mud, Dust and Rust. Tamiya Smoke for the oil stains applied with brush and sealed with Dullcote.
To aid me with the task, I made up a crued paint stain to support the model. Made out Aluminum flat bar, it was bent into shape and tabs at each end with a hole drilled through where, the bogie screws can be used to mount the wagon in place on the stand. Added benifit, wagons of the same bogie centre can also be mounted on the stand.
As mention before, it's a rough job. It was done just to see if the concept would work for me. I've got some ideas I'll employ with the Beta version.