Durable Powder Coat Finishes
Alliance Metal Solutions operates a dedicated powder coating line at our Somersby facility, providing a complete surface finishing solution under one roof. By combining fabrication and coating in a single location, we eliminate the delays and handling damage that come with outsourcing finish work to third parties. Your parts move directly from fabrication to pre-treatment and coating without leaving our premises.
We apply powder coatings from leading Australian and international manufacturers including Dulux, Interpon and Jotun. These systems are available in hundreds of standard colours and finishes, from high-gloss and satin to matte and textured. We also offer metallic, sparkle and specialty finishes for architectural and decorative applications. If you have a specific colour reference or need to match an existing finish, our team can source the exact powder to meet your requirements.
Powder coating provides a tough, uniform finish that outperforms conventional wet paint in durability, chemical resistance and UV stability. The electrostatically applied powder wraps around edges and into recesses, delivering even coverage that resists chipping, scratching and fading in harsh Australian conditions. It is the finish of choice for outdoor furniture, balustrades, signage, machinery guards, electrical enclosures and building facades.
- Dulux, Interpon and Jotun powder systems available
- Hundreds of colours including metallics and textures
- Even coverage with electrostatic application
- Excellent weather and UV resistance for outdoor use
- Colour matching to RAL, AS 2700 and custom references
- In-house pre-treatment for optimal adhesion
Our Coating Process
A quality powder coat finish starts with thorough surface preparation. Every component entering our coating line passes through a multi-stage pre-treatment process that removes oils, mill scale, surface contaminants and light corrosion. This chemical pre-treatment creates a conversion coating on the metal surface that promotes powder adhesion and provides an additional layer of corrosion resistance beneath the topcoat.
After pre-treatment, parts are dried and transferred to our spray booth where powder is applied using electrostatic spray guns. The electrostatic charge ensures the powder particles are attracted to the grounded metal surface, wrapping around edges and reaching into corners and recesses for uniform coverage. Our operators adjust gun settings, powder flow rates and spray patterns to suit the geometry of each component, ensuring consistent film thickness across flat panels, tubular sections and complex fabrications alike.
Coated parts then enter our curing oven, where the powder melts, flows and cross-links into a hard, continuous film. Oven temperature and dwell time are controlled precisely to match the specifications of the powder manufacturer, ensuring full cure and optimal performance of the finished coating. Once cooled, parts are inspected for film thickness, adhesion, surface defects and colour accuracy before packing.
For projects requiring enhanced durability, we offer two-coat systems with a zinc-rich primer beneath the topcoat, providing superior corrosion protection for components exposed to marine, coastal or industrial environments. We also apply architectural-grade powder coatings that carry manufacturer warranties of up to 15 years for facade and external cladding applications.
Frequently Asked Questions
What colours are available for powder coating?
We have access to hundreds of colours across the Dulux Duralloy, Interpon and Jotun ranges, covering standard RAL colours, AS 2700 Australian Standard colours and manufacturer-specific ranges. Finishes include gloss, semi-gloss, satin, matte, textured and metallic. If you have a specific colour code or a physical sample to match, we can source the exact powder.
How durable is powder coating compared to wet paint?
Powder coating is significantly more durable than conventional wet spray paint. The thermally cured finish is harder, more resistant to chipping and scratching, and provides better UV and weather resistance. A quality powder coat on properly pre-treated steel will maintain its appearance for 10 to 15 years in typical Australian outdoor conditions, whereas standard wet paint may deteriorate in three to five years.
Can you powder coat aluminium and stainless steel?
Yes. We powder coat aluminium, mild steel, galvanised steel and stainless steel. Each substrate requires specific pre-treatment to ensure proper adhesion. Aluminium receives a chromate-free conversion coating, while steel is treated with iron phosphate. Our pre-treatment process is tailored to the substrate to deliver the best possible bond and corrosion performance.
Get a Professional Finish on Your Metal Parts
From single components to large production batches, our powder coating line delivers consistent, durable results. Contact us with your colour and quantity requirements for a prompt quotation.
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