The mud was created using Tamiya’s concerete textured paint as a base with lots of earth colored pigments and some static grass and sand added. The first batch was prepared using washable dust by Ammo, though – this represents the dried mud under all the subsequent layers. The next batch was created by adding different (and subsequently darkening) earth colored pigments; after application, as usual, I used a wet brush to adjust the effect, to remove some mud from some places, to move clumps around, and to subtly mix the different layers together. Once the lower hull and the wheels were dirtied up, I glued the wheels on.
The products for the mud I used were the following: Tamiya basing paste (concrete), Vallejo splashed mud, different earth colored pigments and sand with static grass.
(I know it is a lot… I accumulated them over the years, and never really gave them a proper tryout. It is the perfect opportunity I guess.)
If there is one fault of the kit is the tiny connection point between the axes and the wheels. It was really annoying to constantly re-gluing the whells, because the pin holding them was tiny and did not create a strong enough hold.
The last step was adding a couple of mud splashes using the above mixtures diluted with water, and a stiff old brush.
The top of the hull and the turret got some dust (washable dust by Ammo Mig, rainmarks by Vallejo), and pretty much it was it. While I do appreciate the Vallejo weathering products, as they are not solvent-based, they are more difficult to apply properly. The high surface tension of the water in them means they do not spread so easily, and they form tide marks very readily when applied to a dry surface directly. The best way I found to use them was to wet the surface, dilute the products somewhat, and keep feathering the edges of the patches so that the very marked tide-marks do not form. The key is to build up the effect in light layers. Using directly from the bottle will not yield good results.
The middle wheels were painted using AK’s True Metal paint to resemble the worn metallic surface. The same paint was used with dry brushing over some of the surfaces. The model got an overall flat coat (especially the canvas cover on the turret), and the edges were lined with silver pencil.
I did add a lot of petrol spill around the caps, but since the model was over-done, anyway, I really wanted to go the whole nine yards. Always wanted to do one of those over-weathered models… While they are certainly not realistic, they do look good. Mine looks like that the only reason why it does not fall apart due to the extensive rusting, or bursts into flames due to the gallons of spilled gasoline is the incredible amount of mud that holds the whole thing together…
I am not entirely satisfied with the results, but overall I quite like how it turned out.
By the way, the freaking wheels keep breaking off due to the tiny connecting pins snapping every time I handle the model. I gave up and used green stuff to fix them in place.