A couple of people asked about a walkthrough on the rust technique. While I did one some time ago, Photobucket killed it off I think so I am going to have another go, using a couple of bits from the Junktown Main Gate - the containers and the Hind.
First couple of steps
An overall spray using brown car paint. Cheap and effective. On top of that goes a light overspray of black or dark brown to give variation. Dead easy and yet can look quite effective. I'm sure if I had an airbrush I could get slicker but you'd be surprised how much you can do with a couple of cheap spray cans.
Then a quick spray of cheap hairspray and a smattering of salt for heavily rusted areas. So we get...


Then I block in the colours for the main areas. Don't have to be too accurate or consistent here. In fact if the paint varies in thickness it actually helps as it adds to the worn feel at the end.


Then apply a little water and some gentle brushing off with a tooth brush. And without too much work the basic rust effects are already in place.



Next steps to follow soon.