Powder Coating
Service Overview
Astro Powder Coating specialises in superior powder coating services for aluminium and steel, covering components as well as lengths up to 4m. We provide a wide range of standard colours for internal and external applications, with special colours available on request.
Our powder coating operation sits within the Group’s broader turnkey offering. Where fabrication is required before coating, or anodising is specified in addition to powder coating, these services are available in-house through Astro Aluminium and Astro Anodising respectively, keeping the full process under one roof.
Preparation methods, including bead blasting, soda or vapour blasting, and tumbling, are available in-house for small components prior to powder coating.
Powder Coating Services
Extrusion Powder Coating
We powder coat aluminium extrusions across a wide range of standard sections and custom profiles, in lengths up to 4m. Standard and special colours are available for both internal and external applications.
Component Powder Coating
We powder coat aluminium and steel components of various sizes and configurations. Our standard colour range covers a wide selection of finishes suited to both functional and decorative applications.
Colour Range
We offer a wide range of standard colours for internal and external applications. Special colours are available on request. Please enquire directly with our team for a current colour reference.
Powder Coating is one part of our Aluminium 360° offering. If your project requires aluminium sourcing and supply, fabrication, or anodising alongside this service, all are available in-house.
Surface Preparation
Powder coating provides greater protection and a more aesthetic finish for aluminium and steel, reducing susceptibility to damage, rust, and corrosion. To achieve this, the surface must be clean and correctly prepared before coating is applied, ensuring the powder bonds effectively to the metal.
Aluminium 360° | Our Turnkey Approach
Powder coating is one part of our Aluminium 360° offering. If your project requires aluminium sourcing and supply, fabrication, or anodising alongside this service, all are available in-house.
Frequently Asked Questions
What is Powder Coating?
Powder coating is a dry finishing process in which a free-flowing powder is applied electrostatically to a metal surface and then cured under heat. Unlike conventional liquid paint, which relies on an evaporating solvent to set, powder coating forms a continuous film as it melts and flows during the curing process, producing a finish that is harder, more durable, and more consistent than paint.
What is the maximum length Astro Powder Coating can accommodate?
We can powder coat lengths up to 4m, as well as components of various sizes.
What are the key properties of powder-coated aluminium and steel
Powder coating increases a part or component’s lifespan and range of use, making it a preferred finishing method across household appliances, architectural aluminium, automotive parts, and general industrial applications.
- Harder and tougher than conventional liquid paint
- Resistant to chipping, fading, scratching, and corrosion
- Well suited to parts exposed to sunlight and environmental conditions
- Easy to maintain over long periods
- Available in a wide range of colours and finishes
Can powder coating be applied after anodising?
Natural anodising is an effective pretreatment for powder-coated finishes and is widely recommended for applications requiring superior corrosion resistance, particularly in coastal environments. Where anodising is required before powder coating, this can be accommodated through Astro Anodising.
How durable is powder coating compared to paint?
Powder coating produces a finish that is harder and tougher than conventional liquid paint, resistant to chipping, fading, scratching, and corrosion. It is well suited to parts exposed to sunlight and environmental conditions, and is easy to maintain over long periods.
Is powder coating suitable for outdoor and coastal applications?
Yes. Powder coating is resistant to UV exposure and environmental conditions, making it well suited to external applications. For coastal environments specifically, natural anodising as a pretreatment before powder coating is recommended for superior corrosion resistance.
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