The Walnut Ink Darkening Medium was created to give artists complete tonal control over the classic Tom Norton Walnut Ink. Instead of altering your mixtures with water-resistant or acrylic-based inks, this medium lets you intensify the value of walnut ink while preserving everything that makes it unique — its water-solubility, sepia tone, archival formula and expressive flow.
This concentrated medium is perfect for artists who want richer shadows, bolder contrast or deeper underpainting layers. Blend a few drops into your Walnut Ink for a darker wash, or use it straight for dramatic tones and powerful shading.
It remains acid-free, lightfast and fully water-soluble, making it suitable for drawing, illustration, calligraphy, underpainting, watercolor techniques and even encaustic work on wood or paper.
👉 Features:
- Concentrated darkening medium for Walnut Ink
- Maintains the same sepia tone—just deeper
- Fully water-soluble, even when dry
- Acid-free & lightfast
- No shellac or acrylic binder
- Perfect for shading, underpainting & dramatic value shifts
- 42ml bottle
💡 Extra Tip:
Use the Darkening Medium for atmospheric shadow glazing on watercolor paper — it creates moody gradient effects ideal for botanical, portrait or landscape work.
👍 Ideal For:
- Calligraphy shading
- Sepia sketching & illustration
- Watercolor underpainting
- Mixed media contrast layers
- Encaustic base toning
✨ Inspiration Tip:
Create a sepia value scale using Walnut Ink on one side and the Darkening Medium on the other — perfect for tonal studies and vintage-styled artworks.
