Solid Brass or Brass-Plated? The Photograph Will Not Tell You
A product photograph shows colour and form, not what is underneath the colour. Two chandeliers shot in the same warm gold can be entirely different objects: one a solid brass body that has been chemically coloured, the other a steel or zinc-alloy body carrying a few microns of brass deposited in an electroplating tank. In a catalogue they are indistinguishable, and that is not an accident of photography — it is the commercial point of plating.
The vocabulary does not help either. Antique brass, aged brass and vintage brass describe a colour, not a material; a supplier can use all three about a plated fixture without saying anything untrue. The question that separates them is never "what finish is it" but "what is the metal under the finish, and is the colour in it or on it". Four things you can do with the object in your hands answer that.
Four Field Tests You Can Run on a Sample
These take about a minute on a sample or a showroom piece, without a laboratory. None is conclusive alone; together they are usually decisive.
The magnet. Brass is a copper–zinc alloy and is not magnetic. Nor is the zinc alloy used for die-cast decorative parts, nor aluminium. Steel is. A magnet that grips a "brass" arm, backplate or canopy has found steel under the finish, and that result is definitive. The reverse is not: a magnet that finds nothing has ruled steel out, but not a zinc die-casting wearing a brass skin — the most common substitute of all. Run it over the whole fixture; mixed construction is normal and a single test point will mislead you.
The weight. This catches what the magnet misses. Brass is dense, around 8.5 g/cm³ as published material constants go; the zinc alloys used for die-casting sit near 6.6 and aluminium near 2.7. A solid brass arm feels wrong for its size — heavier than the eye expects — while a zinc or aluminium part feels light and slightly hollow. Against a steel core the margin narrows. Weight works best comparatively: a piece you know against a piece you do not, at a similar size.
The edge and the wear points. An electroplated coating is thinnest where the geometry is sharpest and where the part touched the rack in the tank. Look at outside edges, the crest of a thread, screw heads, the rim of a bobeche, the underside of an arm where it is gripped. If plating is going to break it breaks there first, and it shows as a hairline change to grey, white or dull silver rather than to a warmer brass. Solid brass does the opposite: rubbing brightens it.
The sound. Tap the piece with a fingernail. A solid brass component tends to ring with a sustained tone; a thin plated shell over a hollow or die-cast core usually gives a shorter, flatter knock. Treat this as the weakest of the four — wall thickness and mounting change the sound as much as the alloy does. It confirms the other three; it does not replace them.
What Twenty Years Does to Each
A plated finish is a skin. It is deposited in minutes, uniform by design, and it fails by wearing through — at the contact points first, which on a chandelier means the arm a cleaner steadies and the collar a lamp is changed against. Once the base metal shows, the piece cannot be spot-repaired: re-plating means stripping the whole fixture and returning it to a tank, which for a hung, wired fixture in an operating hotel is rarely a real option. Replacement is.
Solid brass ages the other way. Chemical patination transforms the metal surface itself rather than sitting on top of it, so wear exposes more of the same material and reads as age rather than damage. It can be re-rubbed locally, on site, by hand — the same steel wool and wax that produced the finish will restore it. That is the distinction set out in our note on hand-rubbed bronze: a patina deepens with age, a plated surface degrades.
The sealer matters as much as the substrate. A lacquer gives a hard, glossy film that eventually yellows and flakes, leaving the surface beneath it patchy. A microcrystalline wax gives a softer sheen and can be reapplied without stripping anything. Ask which one you are being sold — "sealed" covers both.
Where Plated Is Genuinely the Right Call
Plating is not a fraud. It is a legitimate engineering and budget choice, used badly about as often as it is used well, and it earns its place where nobody will ever touch the piece and the installation has a short, defined life.
Decorative elements mounted out of reach — a high cove detail, the upper tier of an atrium piece — see no hand contact and no cleaning abrasion for years, so the failure mode never arrives. Short-life installations are the other clear case: a sales gallery, a show flat, a seasonal fit-out, a marketing suite stripped in eighteen months. None of them is asking for twenty years. And on large arrays where cost per piece governs the specification, plating over a die-casting can be the difference between a scheme built and a scheme cut.
What matters is that the choice is made deliberately and recorded, not discovered on site in year three. We plate too, and say so: polished chrome and PVD are on our finish list, and all plating we supply is RoHS-compliant. The problem is not plating; it is plating sold as solid brass.
The Exact Wording to Send a Supplier
One email resolves most of the ambiguity here. Ask for it in writing before quotations are compared, and keep the answer with the project file:
"Please confirm, for each part of the fixture — body, arms, canopy, backplate, bobeches and visible hardware — whether it is solid brass, brass-plated, or another material. Where a part is plated, state the base metal and the plating thickness in microns. Confirm whether the finish colour is a chemical patina applied to the metal itself or a coating applied over it, and whether the sealer is a lacquer or a wax. Please send a 50 × 50 mm finish chip produced on the same base metal as the production part."
Three things make that wording work. It asks part by part, because mixed construction is the norm and a whole-fixture answer hides it. It separates substrate from colour from sealer, three independent decisions routinely collapsed into one word. And it asks for the chip on the production base metal — a chip plated on brass tells you nothing about a part plated on steel.
A supplier who answers that inside a day is telling you how their fixtures are made. One who cannot is telling you something too.
How We Build Ours
Our chandelier bodies are solid brass and copper tube stock, TIG-welded by hand and ground flush until the seam cannot be found by fingertip. The colour is chemical rather than deposited: a patina worked into the metal itself, lifted back off the high points by hand, then sealed under microcrystalline wax rather than lacquer. Brushed, aged and antique brass are three stops on one process, not three products.
What follows from it is practical. The finish can be re-rubbed locally rather than replaced. Finish chips are 50 × 50 mm and ship by DHL at cost, refundable against a confirmed order above USD 5,000. The warranty runs five years on the fixture body, plating and LED modules, and two years on drivers and electrical components. Minimum order is one piece and lead times run 8–14 weeks.
Each of the 30 references in our brass chandelier collection can be built in brushed brass, an aged or antique brass patina, hand-rubbed bronze, smoked bronze, aged pewter, polished chrome or PVD — and we will tell you, part by part, which is which.