Gum arabic is a key watercolor binder that controls color spread, increases gloss and transparency, and helps maintain brushwork clarity. This guide compares five notable gum arabic products to help painters choose the right binder for projects ranging from delicate glazing to lifting and corrections. Best for beginners, hobbyists, or professionals who want precise control over flow and finish. The table below summarizes the top picks.
| Product | Brand | Best For |
|---|---|---|
| BLUEBIRD Gum Arabic | BLUEBIRD Store | Control of wet color spread; lightening drying and staining |
| Winsor & Newton Watercolor Medium | Winsor & Newton Store | Main binder for flow control, gloss, and transparency |
| 3.38 fl oz Watercolor Gum Arabic Medium | KOVIEDE Store | Easy lifting and improved gloss; detail work |
| Gum Arabic Medium for Watercolors | FOCIRCLEA Store | Transparency, gloss, and adhesion |
| Jacquard Gum Arabic | Jacquard Store | Gloss and convenience for prepared solutions |
BLUEBIRD Gum Arabic 3.4 Fl Oz / 100ML

Best for color control in watercolor washes and glazing, BLUEBIRD Gum Arabic helps limit spreading of wet color and reduces staining. It slows drying to extend blending time and can be added in small amounts to increase transparency and gloss. This makes it suitable for artists seeking softer edges and more luminous layers. Use with caution on very absorbent papers, where excess binder can weaken the wash. Ideal for students and artists building glazing techniques.
Winsor & Newton Watercolor Medium, Gum Arabic

Best for professional-level watercolor work requiring firm color control, smoother flow, and enhanced gloss. This gum arabic medium serves as a primary binder in watercolor, reducing staining and slowing drying to allow longer blending. It is a solid choice for artists seeking consistent glaze layers and brighter, more transparent colors. May be less forgiving for absolute beginners due to its strong binding properties.
3.38 fl oz Watercolor Gum Arabic Medium

Best for education-friendly use and beginners, this medium emphasizes easier lifting and heightened gloss. It increases pigment gloss and transparency, helping colors appear brighter and more vivid. It also slows drying to provide more blending time. Choose this if you want straightforward control for initial layering and detail work, but be mindful of potential slower drying in hot, dry conditions.
Gum Arabic Medium for Watercolors (110ml)

Best for artists seeking a professional-grade binder with enhanced transparency, gloss, and adhesion. This liquid gum arabic improves paper coating strength and helps prevent brittleness of dried layers. It is compatible with major watercolor brands to preserve pigment purity. It is a versatile option for glazing, lifting, and maintaining color integrity across layers.
Jacquard Gum Arabic

Best for artists who want ready-to-use gloss and convenient prepared solutions. Jacquard Gum Arabic is produced in the United States and provides a reliable gloss boost and storage-ready binder. It may be favored by students and studios that prefer a straightforward, ready-to-use medium for consistent results. Consider this option if you value convenience and consistent gloss in your workflows.
Buying Guide
What should you consider when choosing gum arabic for watercolor?
- Gloss and transparency: If you want brilliant, luminous colors, favor products marketed for gloss and transparency.
- Flow control: For fine detail and precise lines, select binders that slow drying and limit bleeding.
- Ease of lifting: If you need to lift or correct pigment, look for formulas noted for easy lifting.
- Adhesion and coating strength: For durable layers and paper protection, choose binders highlighting adhesion strength.
- Paper compatibility: Ensure the binder works with your typical watercolor paper and brands you use.
- Storage and convenience: Some products offer prepared solutions ready for immediate use, which can save setup time.
Practical questions to guide your choice
- Which gum arabic is best for beginners needing easy blending time?
- Which binder supports strong glazing without muddying colors?
- What binder helps with lifting highlights during correction work?
- Which option offers the best balance between gloss and transparency for a final glaze?
FAQ
- What is gum arabic used for in watercolor?
It acts as a binder, slows color spread, and can add gloss and transparency to paint layers.
- Can gum arabic be mixed with all watercolor brands?
Most gum arabic binders are compatible with major watercolor brands, but test compatibility with your specific pigments.
- Does gum arabic affect drying time?
Yes, it can slow drying, allowing more blending time before the paint sets.
- Is ready-to-use gum arabic better for students?
Prepared solutions offer convenience and consistent results, which can benefit beginners and classrooms.
- How should I store leftover gum arabic solution?
Store in a sealed container away from heat and direct sunlight to prevent evaporation and contamination.
- Is gum arabic harmful to papers?
When used in appropriate amounts, it generally does not harm most watercolor papers; always follow manufacturer guidelines.