Garden furniture takes a beating. Sun, rain, frost, wind, and the general indignity of being dragged in and out seasonally — even the best-made metal garden furniture will eventually start to look tired without some intervention.
If you’ve been putting up with a rusty, flaking bench or a gate that’s seen better days, here’s what you need to know about getting it restored with powder coating.
What Can Be Powder Coated?
Almost any metal item can be powder coated, provided it can withstand the curing temperature of around 180–200°C. This rules out some items with soldered or welded components that contain plastics or certain adhesives, but for most steel and aluminium garden furniture, gates, railings, plant stands, and decorative ironwork, it’s entirely suitable.
Items commonly restored include:
– Garden benches and chairs
– Bistro sets
– Gates and railings
– Metal plant supports and obelisks
– Storage boxes and log stores
– Chimineas and fire pit surrounds
– Decorative ironwork and finials
Why Not Just Use Outdoor Paint?
You can paint it yourself, and for a small item you probably should. But outdoor spray paint has real limitations:
– Adhesion is heavily dependent on surface preparation, which is difficult to do properly at home
– Film thickness is thin — typically 30–50 microns against 60–120+ for powder coating
– UV resistance is limited; colour fades and the finish degrades faster
– The result typically needs re-doing within 2–3 years outdoors
Powder coating, applied professionally to properly prepared metal, will comfortably last 15–20 years. For an item like a garden gate or a statement bench that you’re investing real money in, that difference in longevity is significant.
The same logic applies to estate railings, traditional garden gates, and decorative ironwork. The original craftsmanship in older pieces is often far superior to modern equivalents, and restoration preserves that while giving it a finish that will outlast anything bought off the shelf.
The Restoration Process: What Actually Happens
Here’s what you can expect when you take an item for powder coating restoration:
1. Assessment and stripping — The old finish is removed — usually by blast cleaning or chemical stripping — back to bare metal. Any existing rust is removed at this stage.
2. Pre-treatment — The bare metal is cleaned and chemically pre-treated (typically with an iron phosphate solution) to ensure the powder coating bonds properly. This stage is what determines how long the finished coating will last.
3. Masking — Threads, holes, or areas that must not be coated are masked off with high-temperature tape.
4. Application — The powder is applied electrostatically and clings to the metal surface evenly, including into recesses and around edges.
5. Curing — The item goes into a curing oven where the powder melts and fuses into a smooth, hard finish.
6. Quality check and collection — The finished item is checked for coverage and uniformity before being released.
Cost vs Replacement
A decent set of metal garden furniture is not cheap. Replacing a flaking wrought iron bench with a new equivalent could cost £400–800 or more. Having the original professionally stripped and powder coated will typically cost a fraction of that — and you’ll get a better finish that lasts longer.
The same logic applies to estate railings, traditional garden gates, and decorative ironwork. The original craftsmanship in older pieces is often far superior to modern equivalents, and restoration preserves that while giving it a finish that will outlast anything bought off the shelf.
Getting a Quote
When requesting a quote for garden furniture restoration, it helps to provide:
– Photos of the items from multiple angles
– Dimensions (approximate is fine to start)
– The current condition — is it just surface rust, or is there pitting? Pitting can be ground out but adds time and cost
– What colour you’re looking for (RAL reference is ideal)
– Whether you need delivery/collection
If the item is in very poor structural condition — significant metal loss from corrosion, bent or warped sections — a reputable coater will tell you. Powder coating over compromised metal will not restore structural integrity.
A Note on Curing Temperature
Because the curing process requires temperatures of 180–200°C, items must be able to tolerate this without warping or releasing trapped oils, waxes, or contaminants. Wooden components obviously cannot go in. Some vintage items with soldered brass or bronze details may also be better suited to a wet painting system. Your coater will advise if there are any concerns.
Done properly, a powder-coated restoration will make your garden furniture look better than it did when it left the factory — and it will stay that way for years to come.