There is metallic paint, and then there is gold. No pigment ever ground has matched the way genuine gold leaf takes light — because it isn't imitating a metal, it is one: real gold, hammered thinner than tissue, laid down one fragile square at a time and burnished until a painted surface becomes, literally, golden.
The material, honestly described
Genuine gold leaf is sold in books of twenty-five leaves, each about 3⅜ inches square — a book covers roughly a square foot and a half. It comes in karats like jewelry does: 23K is the standard for architectural and sign work; 23.75K "double gold," beaten slightly heavier, is the choice for exterior work exposed to weather; alloys below 22K shift color — paler, whiter golds — and need a protective seal. Leaf comes two ways: loose, floated off the book with a gilder's tip for the finest finishes, and patent (transfer) leaf, pressed to tissue for surer handling on walls and outdoors. None of this is exotic — the same suppliers who stock sign painters' brushes stock the leaf, the size, and the tools.
Oil gilding: how architectural gold goes on
Most gilding on trim, medallions, furniture, and signs is oil gilding, and the process is a study in patience. The surface is made flawless first — gold magnifies every defect beneath it. Then a thin adhesive varnish called size is laid exactly where the gold will live, and the gilder waits for it to reach tack: not wet, not dry, but the precise clinging moment — quick sizes open in an hour or three, slow sizes in twelve, and the slow ones burnish brighter. The leaf is lifted, laid, and tamped down with a soft mop; overlaps and loose fragments — the trade calls them skewings — are swept away, and the gold is gently rubbed to its luster. There is no undo. A sneeze can cost a leaf. It's the most meditative work we do.
Water gilding and glass gold
The older, grander technique is water gilding: layers of gesso and a clay called bole built up and polished, the leaf floated on with water and gelatin, then burnished with an agate stone to a mirror — the method behind museum frames and cathedral altars, reserved for interior showpieces. Its cousin is glass gilding: leaf laid on the inside of storefront glass with a gelatin size, burnished to a true mirror shine, then backed and outlined. That's the technique behind every gleaming bank and barbershop window in the old photographs — and it pairs with hand-painted lettering as the most permanent signage a business can own.
Where gold belongs in a home
The art of gilding a residence is restraint. A ceiling medallion above a chandelier. The carved relief of a mantel. A picture rail traced in gold so the lamplight finds it at night. Gold is the highest-energy accent in the palette — a lit match, not a floodlight — and a thread of it is what separates a dark, moody room that feels dramatic from one that falls flat. Gilded accents sit alongside our textures and faux finishes in the decorative repertoire, composed into palettes through Chromatica™ like any other color decision — because gold, too, has a temperature and an energy.
Honest numbers: durability and cost
Genuine gold at 23K and above never tarnishes — it's why century-old gilded domes still burn at sunset, and why high-karat exterior gold is traditionally left unsealed to keep its full fire. The imitation route — composition leaf, a brass alloy — delivers much of the glow for a fraction of the material cost, but it will tarnish and must live under a clear coat. As for price: the gold itself costs less than most people guess for accent-scale work — a few books of leaf cover a mantel detail or a window's lettering. What you're really commissioning is the hand: the surface work, the tack judgment, the leaf laid true. We'll always tell you plainly which material fits the job — and where genuine gold is worth every karat.
