Black Urushi Lacquer Kuro-Urushi for Kintsugi Line Drawing , Polishing and urushi art

This Black Urushi Lacquer Kuro-Urushi delivers rich deep black color.
Great for kintsugi ceramic repair, base layers, black top‑coat, maki‑e and traditional lacquer art.
Hard‑wearing and water‑resistant after full cure.

Premium Black Urushi Lacquer (Kuro-Urushi) for Kintsugi & Fine Lacquer Art

Our Kuro-Urushi (Black Urushi) is a high-purity, naturally refined black lacquer designed for precision line drawing, base coats, and sleek polished finishes. Formulated using traditional iron-reaction refining methods, it delivers a rich, jet-black luster that cures into a durable, waterproof shell.

Key Applications in Craft & Repair

• Kintsugi Line Drawing: Ideal for precision brushwork and outlining before gold powder application.
• Base Coats & Topcoats: Forms a dense, scratch-resistant foundation for ceramic repair, fountain pen bodies, and wooden crafts.
• Maki-e & Polishing (Togidashi): Perfect for fine detail artwork, lacquer layering, and high-gloss mirror polishing.

Technical Specifications

• Ingredients: 100% Natural Japanese Urushi Tree Sap, Naturally Refined Iron Pigment.
• Finish Quality: High gloss, deep jet-black pigmentation after full humidity curing.
• Curing Requirements: Requires 70%–80% RH (Relative Humidity) at 20°C–25°C (68°F–77°F) in a humid box (Furo).
• Durability: Highly resistant to water, heat, alcohol, and natural wear once cured.

Frequently Asked Questions

Q: What makes Kuro-Urushi (Black Urushi) different from Raw Urushi (Ki-Urushi)?
A: Ki-Urushi is unrefined brownish sap used mainly as an adhesive or sealer. Kuro-Urushi is refined and combined with iron oxide to produce a deep black color, making it ideal for visible topcoats, line drawing, and decorative finishes.

Q: Can I use Black Urushi directly as the final layer before applying gold powder in Kintsugi?
A: Yes! Black Urushi provides a stark, high-contrast base for gold or silver powder. However, Bengara Red Urushi is also commonly used if a warmer gold tone is desired.

Q: Is cured Black Urushi food-safe for tableware?
A: Yes. Once completely cured in a humid environment, natural Kuro-Urushi creates a inert, non-toxic, food-safe surface safe for tea cups, bowls, and cutlery.