Vault Boy Coaster

Test the New Vallejo Airbrush Colors.

creator: x14km2d | build: 2021-12-20 | update: 2021-12-26


A few days ago I had ordered colors for my new airbrush online. These I could not yet try out, because I need rest for it and the holidays just need a lot of time for the family and my relatives. Nevertheless, I really wanted to test the colors. I ventured out of my comfort zone and downloaded a Vault Boy Coaster. With it, I can test the basic colors quite well and see how they behave on the material. In addition, I can then already better estimate how I have to mix the colors later with the airbrush.

Such tests are also quite good to learn how colors behave. Paints are very special liquids that have individual properties depending on consistency, manufacturer and place of manufacture. A color from one manufacturer may work well for a miniature, but then it is not usable on XPS foam. Especially when buying new colors, you should look for projects that are not in the color spectrum you usually work with. Please note that these are only airbrush colors, which are naturally more fluid than e.g. miniature colors.

Paint Job

After we have printed out the Vault Boy Coaster, we clean it with a modeling knife and a nail file. This will ensure that there are no large pieces of plastic in the way when we paint the object later. The more effort you put into this now, the less annoyed you will be later. I speak this also years of experience.

For the hair I used the medium yellow (71.002). The consistency is good and was easy to apply. The yellow had a strong signal effect on the white background of the 3D object. Even though you can print in different colors, you should still always use white filament. Then you do not necessarily have to prework with primer, but can apply the colors in natura.

For the belly band on the figure’s suit, I mixed medium yellow with white (71.001). Since this looked too much like egg yolk or Easter yellow to me, I added a tiny drop of mud brown (71.037). You really have to be careful there, because if you mix in too much you’ll have a light brown and you don’t want that. Since I didn’t buy a skin color, I mixed mud brown and white together until it was a suitable color for the skin.

In the penultimate step, I used a strong blue (71.004) for the suit. The blue is a little weak in intensity and I had to apply two layers. But that didn’t work as well as I had imagined. Since the color had such weak pigments it was able to flow well into the crevices of the 3D print and reminded me more of the flow behavior of oil washes. Still, the color is beautiful. The red color (71.003) had more pigments and could also be applied better.

In the last step, I painted the outer lines and other details with black (71.057) and our little test is finished. When you do something like this, try not to give in to your inner urge and take a model that suits your taste. Just pick anything, because that’s the fastest way to learn to work professionally. You have to get over your inner bad self and also venture out of your cozy comfort zone, because that’s the only way you can move forward and develop.


I deliberately refrained from making everything perfect, because I didn’t want to invest too much paint in this test. I was able to get a rough overview. The consistency of the Vallejo colors is impressively good. I had never been able to mix white with a brown so well, without it clumping or individual threads. This surprised me positively. I can now estimate much better how I have to mix colors for the airbrush and what consistency I already have at the beginning, so I do not have to add too much airbrush thinner. In addition, I now have a small and spontaneous Christmas gift.

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