Hi Steve and thank you for your comments.
I use Evergreen plastics and when everything is cut, I use Loctite super glue gel to assemble the pieces. Some filing and sanding is required and then I prime the door with Mr. Hobby Mr. Surfacer 1000. Once dry I apply two coats of Tamiya AS-12 (Bare Metal Silver). Then I apply one coat of Tamiya AS-24 (Luftwaffe Dark Green). Once this has dried I lightly mist the door with Tamiya AS-23 (Luftwaffe Light Green). The idea here is to create a dimension between the two colors. Once this dries, I use Secret Weapon Pigments. I apply Sewage Muck using a make-up foam applicator/sponge. I then lightly coat the pigment with Hobby Master clear flat lacquer to lock in the pigments. I then use a mix of pigments with a ratio of 75% Slate Green and 25% Slate Gray and once applied, I mist the pigments with the clear flat lacquer.
Once everything has thoroughly dried, I use a Zem deerfoot stippler brush with Mr. Color Thinner 400 and thin out areas on the corrugated panels. I use the stippler and just enough thinner to expose the silver paint underneath. I then cut small pieces from a Tamiya 1000 grit sanding sponge and using lockable tweezers, I lightly sand areas on the corrugated panels and frame to expose the silver paint. I idea here is to create areas of wear.
I then use Vallejo Light Rust and apply it with a small narrow paint brush. In some areas I use a wider dry brush to smooth and blend the rust. I use the tip of a sharp blade to create small chips on the frame paint, and use 400 grit sandpaper to remove paint along the hard edges.
Finally, I use a make-up sponge to apply Secret Weapon Pigment Dark Earth on the corrugated panels and frame. This pigment color represents rust perfectly. I moderately apply this pigment because if applied too lightly, it doesn't show properly once the flat lacquer is applied. I then lock in this pigment by lightly coating it with the flat lacquer.
I hope this helps and doesn't bore you too much.
Mark
