Six Stages, One Unbroken Chain

The complete craft of cloisonné enamel is built on six interdependent master stages: body making, wire inlaying, enamel filling, firing, polishing, and gold plating. Each stage is indispensable; none can be skipped or abbreviated. The entire process is hand-driven, governed by strict sequence and techniques found nowhere else in the world of craft.

I. Body Making

High-purity red copper is chosen for its malleability, heat resistance, and resistance to cracking. Copper sheets are cut to shape, then hand-hammered, forged, bent, rolled, joined, and welded into the vessel form — vases, plates, incense burners, zun vessels. Complex forms are made in separate sections and welded together with seamless precision.

Technical requirements: The body must be uniform in wall thickness, perfectly symmetrical in form, smooth in curvature, and seamless at all joints. A solid, stable body is the foundation that allows the piece to withstand multiple firings without warping.

II. Wire Inlaying: The Soul of the Craft

Preparing the wire: Red copper is rolled into flat wire, selected by width according to the design — fine wire for flower stamens, facial features, and delicate veining; heavier wire for outlines and borders.

Shaping the wire: Using specialist tweezers, the artisan hand-bends, curves, folds, and coils the wire into the design's motifs — flowers and birds, dragons and phoenixes, interlocking lotus scrolls, landscapes — with corners rounded smoothly and lines of consistent weight.

Adhering and fixing: The shaped wires are precisely positioned on the copper body using traditional hide glue, then fixed permanently by low-temperature soldering, fusing wire and body into a single inseparable structure with no lifting or looseness.

Technical essence: Wire lines must be as upright and continuous as ink brushwork in fine-line painting — the composition layered and clear, curves natural, turns precise. This is the defining characteristic that distinguishes cloisonné from all other enamel traditions.

III. Enamel Filling

Natural mineral enamel glazes are ground fine and prepared by colour. Using specialist tools — enamel guns, fine tubes, small spatulas — the artisan hand-fills each cell formed by the copper wires with the appropriate colour, pressing and levelling the enamel without overflow or gaps.

Technical requirements: Colours are built up in layers, with gradations from light to dark creating wash and gradient effects. Because enamel shrinks during firing, each cell must not be filled to the top — space must be left for contraction. The principle of "light motifs on deep ground, primary colours dominant" governs the colour composition.

IV. Firing

The filled piece is placed in a kiln at a constant 800–850°C. The enamel melts into a glassy state and bonds permanently to the copper body and wires. After cooling, the colour is fixed.

Technical character: The process must be repeated three to four times — each firing causes the enamel to shrink and sink, requiring the artisan to refill and refire until the surface is level. Temperature control is the critical challenge: too low and the enamel fails to fuse, becoming dry and prone to flaking; too high and it flows, destroying the design. Correctly fired enamel is crystal-clear, deeply lustrous, and permanently colourfast — resistant to fading for centuries.

V. Polishing

After multiple firings, the enamel surface and copper wires are uneven. Hand polishing proceeds through four grades — coarse sandstone, fine sandstone, charcoal, and fine abrasive — from rough to refined in careful sequence.

Technical requirements: The enamel surface and copper wires must be brought to a perfectly flush, uniformly smooth finish — no bubbles, no pinholes, no scratches. The challenge is to level all unevenness without abrading the wire profiles or thinning the enamel layer — achieving flatness while preserving warmth and depth of surface.

VI. Gold Plating

The exposed copper wire edges and body borders revealed by polishing are gold-plated — traditionally by mercury gilding with real gold; today most commonly by electrolytic gold plating.

Technical function: Gold plating conceals copper oxidation, brightens the wire lines, and sets off the enamel colours. Gold, blue, red, and green in mutual contrast create the characteristic magnificence of cloisonné. Gold plating also provides corrosion resistance and long-term colour stability.

VII. Variant Techniques

Chiselled-body enamel (錾胎珐琅): Instead of wire inlaying, designs are engraved directly into the copper body — lines cut deep, ground recessed — before enamelling and firing. The result is heavier and more sculptural in character.

Hammered-body enamel (锤胎珐琅): The copper body is hammered from behind to raise the design in relief on the surface, then enamelled and fired. The enamel appears embedded like inlaid gemstones, with strong three-dimensional presence.

Openwork cloisonné: Wire structures are combined with pierced openwork forms, creating translucent, layered compositions of great delicacy — used for lamp shades, incense burners, and display objects.

VIII. The Core Technical Identity

Copper body as bone. Wire as boundary. Enamel as colour. Firing as soul. Polished gold as ornament. The sequence is fixed; the logic is closed and complete. Every stage depends on hand skill — the control of line, colour, temperature, and surface that no machine can replicate. Wire defines form; enamel fills it with life; metal rigidity and enamel warmth fuse into a single object where the beauty of line, the beauty of colour, and the beauty of material are inseparable.

Lema Harmony & Cloisonné

We work with cloisonné masters whose hands carry this complete technical tradition — collaborating to create limited-edition pieces where six ancient stages of craft meet contemporary design.