Shymer wrote:Those wall sections are astonishing. In a good way!
If you have a moment, could you note down some details on how you chose the right type of material (do you pick a particular density/depth/finish) - what you learned about it - and how you went about doing cracks and chunks out of the top? The end effect is beautiful. I wish I had three days outside of looking after kids to experiment.
Am I right in assuming that you've undercoated in dark grey and then dry-brushed in light grey with brown wash?
Thanks for the positive feedback!
The walls are made of 2cm thick extruded polystyrene (XPS) foam. The density I am not sure of, I guess type C (high density).
The material is best cut to size with a saw. Cutting is more for detailing, not for angular work.
Make sure to sand down well after making your shape. My first wall sections were a bit course and the sawed surfaces look less like concrete and more like wood (stripe patterns).
For glueing parts together I use PVA woodglue. For straight lines I use a file. To damage the walls I use a sculpting tool to chip parts out of the wall.
Making dents in the material and cutting lines to make cracks in the walls is a real fun job. I like telling a story by creating interesting surfaces.
After all that it is time for an undercoat. I use the regular spray cans from Citadel or Army Painter.
This will bite into the XPS and eat away at it which will create a somewhat textured surface which will respond well to dry brushing.
In answer to your question: The walls are NOT painted dark grey / light grey.
I used a watered down mix of Vallejo olive green and Vallejo black wash for the base coat.
Drybrushing was done with a mix of Vallejo pale green with Citadel administratum grey.
I used Vallejo rust wash for the browns, no need to water it down because this wash is not to extreme when it dries up.
Below picture shows the materials used and the difference in colour compared to using black / grey for a surface.
That black/grey one was my first experiment with making an object, and as you can see it looks less convincing compared to the wall.