Durable Colour. Lasting Protection.Â
Enhance your Urbanfab shelter or storage solution with a powder-coated finish, adding colour and an extra layer of protection against the elements.
Powder coating incurs an additional cost and typically adds 3–4 working days to the standard lead time.
Hot-dip galvanising provides long-term corrosion protection in its own right and is Urbanfab’s standard finish for outdoor steelwork. As outlined by the Galvanizers Association, combining galvanising with powder coating creates a duplex coating system that offers decorative and additional protective benefits, such as reducing moisture and atmospheric contaminant exposure to the zinc, helping protect the underlying steel against corrosion for longer.
Durable. Practical. Long-Lasting.
✓ Construction — Hot-dip galvanised after fabrication to ISO 1461:2022
✓ Protection — Corrosion resistance across accessible internal and external mild steel surfaces
✓ Appearance — Natural silver-grey metallic finish, with slight surface variations that may remain visible beneath powder coating.
✓ Value — Inherent UV resistance and a low-maintenance finish, included as standard
Best suited where:
Long-term corrosion protection and a natural galvanised appearance are preferred over a coloured finish.
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Colour. Protection. Versatility.
✓ Foundation — Hot-dip galvanised steel
✓ Coating — Exterior architectural-grade polyester powder helps shield the underlying zinc from moisture and atmospheric contaminants.
✓ Appearance — Standard RAL colours, typically semi-gloss, with matt and gloss finishes available on request.Â
✓ Weathering — UV-resistant powder-coated finish designed to help maintain colour and appearance over time
Best suited where:
Coloured architectural finish for inland locations with limited salt exposure.
Epoxy. Barrier. Coastal
✓ Foundation — Hot-dip galvanised steel
✓ Barrier — Additional epoxy primer helps protect the galvanised surface beneath the powder coating in salt-laden environments
✓ Finish — Architectural-grade polyester powder topcoat in standard RAL colours, typically semi-gloss
✓ Weathering — UV-resistant powder-coated finish designed to help maintain colour and appearance over time
Best suited where:
Coloured architectural finish with additional corrosion protection for salt-laden coastal locations.
For installations within approximately two miles of the coast, or in other areas subject to significant salt-laden air, Urbanfab recommends an enhanced powder-coating system incorporating an additional epoxy barrier primer. Where powder coating is specified, the epoxy layer helps limit salt and moisture exposure beneath the polyester topcoat, reducing the risk of corrosion developing at the galvanised surface.
Choose from any standard RAL colour to complement surrounding buildings, match organisational branding or create a coordinated appearance across your site. The colours shown below represent a small selection of our popular options.
Anthracite Grey
Jet Black
Racing Green
Ultramarine Blue
Traffic Red
Traffic Green
Traffic Grey A
Traffic Yellow
Colours displayed on screen are for guidance only. Actual powder-coated colours may vary according to finish, substrate and screen settings. Please refer to an official RAL colour chart when specifying a colour.
The following comparison highlights the key considerations when choosing the right option for you and your project.
| Feature | Factory Powder Coating | Hand-Applied Metal Paint |
|---|---|---|
| Finish & Protection | Consistent architectural finish with an additional protective barrier. | Appearance and protection depend on paint, preparation and application. |
| On-Site Work | Factory-finished — no on-site painting required. | Requires preparation, painting and drying, with site arrangements where necessary. |
| Cost | Additional charge, quoted on request. | Generally lower initial cost, allowing for materials, time and labour. |
Regular cleaning and routine inspection help preserve both the appearance and protective qualities of powder-coated steelwork. Wash surfaces with mild soapy water and a soft cloth or sponge, then rinse thoroughly with clean water to remove any residue. Avoid abrasive cleaners, polishes and harsh chemicals, as these can damage the coating and affect its long-term performance.
For colour-matched touch-up materials to accompany your order, or advice on repairs to standard and enhanced coastal powder-coated finishes after installation, please contact us.
Keeping a simple record of cleaning and maintenance, including dates and any repairs undertaken, is recommended for future reference and support if required.
Our team is happy to help you choose a suitable powder-coated finish for your Urbanfab shelter or storage solution