Powder coating for aluminium

While we usually work with steel at Joseph Ash Galvanizing, our powder coating service extends to aluminium as well, proving popular for architectural fabrications such as window frames, balconies, and railings.

We explore what powder coating is, its benefits for aluminium fabrications, and why it is preferential to traditional liquid paints.

Difference between paint and powder coating for aluminium

Unlike paint, which is applied in liquid form onto the aluminium surface, powder coating is applied in powder form via a spray gun. The particles are electrostatically charged, and heated in an oven after application. The process means powder coating lasts much longer than paint does, so your aluminium fabrication is protected for longer and maintains its finish.

How is aluminium powder coating performed?

The process for powder coating aluminium is the same as the powder coating process for steel.

Surface preparation before powder coating is important to make sure the aluminium is clean so that the powder coating can adhere to the metal surface. After the aluminium has been thoroughly cleaned, it will then be ready to be powder coated by a skilled operative.

The powder particles are charged with positive electrostatic charge, which makes them stick to the aluminium. The process only uses as much powder as is necessary to coat the surface, minimising material waste and making it a much more sustainable option.

The fabrication is then baked in a curing oven to form a tough, corrosion-resistant coating that can last for many more years than liquid paint.

Benefits of powder coating aluminium

Like liquid paint, powder coating paints come in a wide range of colours, textures and finishes. There are numerous benefits to powder coating aluminium compared to liquid paint:

• The curing process involved with powder coating creates a tough, protective layer on aluminium that’s resistant to chipping and scratching, meaning you save time and money on upkeep in the long term.
• Powder coating helps provide an extra layer of protection against corrosion, making it perfect for outdoor applications like window frames, doors, and railings.
• Powder coated metal is easily recyclable. Similarly, it also doesn’t release VOCs (volatile organic compounds), and the process only uses as much powder as is needed to coat the metal. This helps to make powder coating a sustainable choice.

Where to powder coat aluminium

Both steel and aluminium powder coating are available at Joseph Ash Galvanizing’s South East location, Joseph Ash Medway. The site is located in Sittingbourne, Kent, but transport options are available across the UK thanks to our large lorry fleet. For those in the South East of England and surrounding areas, Joseph Ash Medway is the ideal location for all aluminium powder coating services.

We’re proud to offer up to a 35-year warranty on all aluminium powder coating, so you can rest assured sure your fabrication is protected for the long term

Why Joseph Ash Medway?

• Up to 35 years’ warranty on aluminium powder coating ✔️
• Collection and delivery options ✔️
• Excellent packaging after coating to keep fabrications safe during transport ✔️
• 24 hour turnaround on agreed orders ✔️
• Members of the Aluminium Federation ✔️