Surface Finish Gilding

Gilding is the art of applying thin sheets of metal leaf to a prepared surface. It is one of the oldest decorative crafts, used for centuries on everything from ecclesiastical carvings to ornate picture frames, and it remains one of the most expressive finishes available. No two gilded frames are ever quite the same.

What Gilding Looks Like

The visual range of gilding is remarkably wide. A freshly applied and burnished gold leaf catches light with a warm, liquid glow that no paint or spray can replicate. Silver leaf has a cooler, more contemporary character. Copper offers rich autumnal warmth, while bronze sits somewhere between gold and copper with a deep, antiqued feel. Aluminium leaf provides a lighter, more industrial alternative to silver.

But the real beauty of gilding lies in what happens after the leaf is laid. Through techniques like patination (ageing the surface with chemicals or pigments), rub-through (selectively wearing back to reveal the coloured bole beneath), scuffing, and burnishing, the gilder creates depth and texture that make the frame feel alive. A gilded frame can be bright and celebratory, dark and brooding, gently aged, or crisply modern, it depends entirely on how the leaf is treated.

How Gilding Is Done

The process is slow, skilled, and largely unchanged for hundreds of years. Each stage builds on the last, and there are no shortcuts.

Gesso base. The frame is coated with multiple layers of gesso, a mixture of chalk (whiting) and rabbit-skin glue. Each coat is applied, dried, and sanded. This creates a perfectly smooth, slightly absorbent surface for the leaf to adhere to. On ornate mouldings, the gesso must be applied carefully to preserve every carved detail.

Bole. A thin layer of coloured clay, traditionally red, yellow, or black, is brushed over the gesso. The bole serves two purposes: it provides a smooth cushion for the leaf, and its colour influences the final tone. Red bole gives warmth to gold leaf. Black bole lends silver leaf a cooler, more dramatic depth. The choice of bole is one of the subtler decisions that shape the finished look.

Leaf application. Metal leaf is extraordinarily thin, gold leaf is roughly 0.1 microns, thinner than a wavelength of light. The leaf is lifted with a gilder's tip (a flat brush) and laid onto the prepared surface. In water gilding, the bole is dampened first so the leaf bonds through surface tension. In oil gilding, a tacky adhesive (gold size) is applied and the leaf pressed on once it reaches the right tack.

Burnishing and finishing. Water-gilded surfaces can be burnished, polished with an agate stone, to bring the metal to a brilliant, mirror-like shine. This is the hallmark of traditional water gilding and cannot be achieved with oil gilding. After burnishing, the gilder may add patination, rub-through, or toning to create the desired character.

Water Gilding vs Oil Gilding

Water gilding is the traditional technique and produces the finest results. Because the leaf bonds directly to dampened bole, it can be burnished to a high shine, the deep, reflective glow that defines the best gilded frames. It is more time-consuming and requires a gesso base, but the results are unmatched.

Oil gilding uses an adhesive (gold size) instead of water. It is faster, works on a wider range of surfaces, and is more durable in exposed conditions. However, oil-gilded surfaces cannot be burnished, so the finish has a softer, more matte quality. For frames that will be heavily patinated or distressed, oil gilding is often the practical choice.

Where Gilding Works Best

Gilding suits artwork and settings that benefit from richness, warmth, or a sense of history. Oil paintings, particularly traditional and figurative work, have been presented in gilded frames for centuries, and the combination still works. But gilded frames are equally at home with contemporary art, photography, and mirrors, especially when the leaf treatment is kept restrained or modern in character.

In interiors, gilded frames bring warmth and focal interest. They work in living rooms, dining rooms, hallways, and bedrooms, anywhere you want a frame to feel like more than a boundary around an image. A gilded mirror frame, for instance, becomes a piece of furniture in its own right.

Compatible Materials

Gilding can be applied to both wood and metal frames. Wood is the traditional substrate and takes gesso beautifully, making it the natural choice for water gilding and ornate profiles. Metal frames can also be gilded, typically using oil gilding, which bonds well to primed metal surfaces. The result is a striking combination of contemporary metal form with the warmth and texture of metal leaf.

Durability and Care

Genuine gold leaf does not tarnish, it is one of the most stable decorative materials in existence. Silver, copper, and bronze leaf will oxidise over time if left unsealed, so these are typically finished with a protective lacquer or wax. Aluminium leaf is also stable and does not tarnish.

For care, dust gently with a very soft brush or cloth. Avoid rubbing, especially on burnished areas, as excessive pressure can wear through the leaf over time. Never use water, solvents, or cleaning sprays on a gilded surface. If a gilded frame is damaged or worn, it can usually be restored by re-gilding the affected areas, a significant advantage over finishes that cannot be repaired locally.

Cost and Commissioning

Gilding is a time-intensive handcraft, and the cost reflects the hours involved. The main factors affecting price are frame size, profile complexity (ornate mouldings take significantly longer than flat profiles), the type of metal leaf (genuine gold is more expensive than silver or aluminium), and the level of finishing (burnishing, patination, and distressing all add time).

Because every gilded frame is unique, we recommend getting in touch early in your project. Send us the dimensions of your artwork, an idea of the style you are after, and we will provide a free, no-obligation quote. If you have seen a gilded frame you admire, in a gallery, a photograph, or online, sharing that reference helps us understand the look you are hoping to achieve.