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Re: Chalky color Titanium white
Discworldjunkie,
The word, "chalky" is quite often overused or misused, and generally is referring to an extreme opacity of the white.
As Colin said, it may be more a matter of how your white is used. However, titanium is an extremely opaque white, compared to either lead (Cremnitz) or Flake White (lead and zinc), and often gives rise to the term, "chalky".
Zinc is the most transparent, and therefore quite friendly for mixing with color, but is often said to become brittle, when dried. The usual choice for a mixing white is a good brand of Flake White. The lead and zinc mix creates the best of both worlds, along with faster drying and reasonably flexible paint film. It works very well for glazing applications, where the translucency of it aids in allowing underlayers to be at least partially visible.
Be cautious when buying Flake white, as I understand some of them have other or different ingredients than lead and zinc. Lead white has a lot of fine qualities, and any Flake made without lead white as an ingredient is just.....well.......NOT "Flake White". Old Holland makes a good Flake White, and I use it routinely. It mixes well with colors, and does not give a "chalky" appearance.
Bill
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Hybrid Mode
