11.9.1 Dry Pigments

Modeling Information

Pigments are colored particles that add color to other materials by absorbing or scattering light.
They are often powdery and are mixed with a liquid to add color to materials like paints, inks, plastics, and rubber. Pigments are chemically unreactive and nearly or completely insoluble in water or other mediums. They require a binder to dissolve into liquids. 

In railroad modeling pigments are used primarily in the zip texturing scenery technique: 1) the powder added to plaster in various ratio's and then wetted for casting, or 2) sifted dry onto surfaces to imitate dirt or other soil scenery techniques.

The WWSL

The WWSL uses the following pigments for rock casting and ground cover applications:

  • Chrome yellow Medium
  • Raw Umber (muddy gray brown)
  • Burnt Umber (deep chocolate brown)
  • Raw Sienna (yellowish mud)
  • Burnt Sienna (rust-red)
  • Chrome Green Medium

Dry Pigment formulas. Here are the formulas I use in scenery activities.

 

 light gray

 

 reddish rock

 taprock gray

 

 bluish grass

 very light gray

 

 merlon blue grass

 dull tannish gray

 

 grayish grass

 light hemp

 

 yellowish grass

 priairie warm gray

 

 

 














Reference

Scenery

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