TER-OR wrote:Whatever you do, don't over-do it. Subtle is the rule at this scale. I'd avoid the "grunge" wash. It's appropriately named - usually it makes things look grungy.
Agree with that. It also depends on how close you want the "audience" to come. For a real close look, a subtle shading with an airbrush is the way to go. I recently tried a black ink wash on a SW Venator conversion, and when you take a close look the thing looks literally dirty - even though the "long range" effect is perfect.
grinded artist chalk might be a way to try. another thing that can work wonders is using graphite or rubbed soft pencil mine: take a piece of cardboard and draw an area with a soft pencil, so that a black, shiny spot is created. Then wrap a piece of cotton cloth around your finger, rub some graphite off of that spot, and rub/transfer it gently over the kit's surface.
The effect is a very subtle and gradual weathering which works on a lot of scales, and especially well on very light surfaces. Additionally, you get a metallic shimmer to egdes and corners, which adds realism, too. I used it on Kenner Star Wars toys, as well as on model kits like mecha - easy to do and effective.
Just make sure you use a really soft pencil, or use artists' graphite. Best way is to ask in a hobby shop, normal "school pencils" tend to be too hard for this treatment.