Lead, Titanium & Zinc White: What They Do to Color—and to Paint

Lead, Titanium & Zinc White: What They Do to Color—and to Paint

Technical Studio Session · September 24, 2026

White is often treated as the simplest color on the palette. In practice, the choice of white can change nearly every aspect of an oil paint mixture: how quickly the value rises, how much chroma is lost, whether the hue shifts, how strongly the underlying layer is covered, and how the paint handles under the brush.

The differences continue after painting stops. Pigments can influence how the oil dries, how the paint film develops mechanically, and how it behaves as it ages. Lead White, Titanium White, and Zinc White are therefore not interchangeable versions of the same color. They are different materials with different optical, chemical, and mechanical behavior.

This Technical Studio Session combines published conservation and materials research with studio measurements of color, opacity, gloss, and drying behavior. The objective is not to identify one universally “best” white, but to understand what each material actually does so that artists can choose a white according to the job it must perform.

This session examines:

• How Lead, Titanium, and Zinc White differ as pigments and as complete paint formulations
• How to read CIELAB measurements of lightness, color bias, and chroma
• Why Titanium White raises value so strongly in mixtures
• Why “chalkiness” can involve value, chroma, hue, and opacity rather than one single effect
• What matched-lightness mixtures reveal about Lead and Titanium White
• How the effect of a white changes with the colored pigment being mixed
• Measured differences in hiding power among white paints
• How different white formulations behave during drying
• Why drying time does not predict long-term film durability
• How Lead White interacts with the drying oil and why its films can remain strong and extensible
• Why Zinc Oxide can lead to embrittlement, cracking, and delamination
• Why zinc has historically appeared in Titanium Whites and other colored paints
• What Plumbonacrite is and how it differs from conventional Lead White
• The historical concern about Lead White and sulfur-containing pigments
• Safe studio practices for working with Lead White
• How to choose a white according to tinting strength, opacity, handling, and the role of the paint layer

Recorded live September 24, 2026. Members have access to the session recording, a one-page studio handout, and access to the Painting Best Practices community for follow-up questions.

$35 · Free to Artisan members