Powdercoating Services in Sydney

Powdercoating is an organic coating method which uses a coating material in the form of a fine powder. The main difference between a conventional liquid paint and a powdercoating finish is that the powdercoating does not require a solvent to keep the binder and filler parts in liquid suspension form. This powder is applied using high voltage, electrostatic guns that impart a static charge to the powder, allowing it to stick to the components. The powder film is then baked at around 200°C, where it melts and the curing occurs, forming a paint ‘skin’ on the product.

The process is a very common finish and is used on all types of metal components from fencing panels and bike frames to light poles and car wheels.

For successful powdercoating, the part must be able to withstand the required curing temperatures of approximately  200°C and, like most coatings, the metal surface must be free from any surface contamination. Surfaces can be prepared for powdercoating by abrasive blasting and/or using chemical conversion coatings such as phosphates or the many other chemical surface treatments available. The part being coated generally must be electrically conductive, as it will need to be earthed to attract the electrostatically-charged powder.

Parts are most commonly hung on a rack or hook, which will leave a small mark somewhere on the component. As always, we endeavour to work with all our customers to ensure the rack mark is on a cosmetically minor or internal surface.

Powder has a number features that make it an attractive all-round finish. It has good covering ability, it emits very few volatile organic compounds, it offers a great range of textured and glossy finishes, and it exhibits strong chemical resistance characteristics.

The nature of the application process means that powder will tend to build up on the edges of parts where the coating thickness may be well over the 150 microns. Recesses and internal corners will show reduced thickness and in some cases may even be uncoated, due to the nature of the electrostatic charges.

Powder formulation can be based on polyester resins (which is the most commonly used general purpose powder), epoxies, polyurethane blends and even PTFE coatings.

Why Choose Us?

  • Versatile size and batch capabilities with high quality in-line pretreatment facilities.
  • Access to a world-wide powdercoating knowledge base.
  • In-house quality team with corrosion testing facilities.
  • Regular oven monitoring and a fully automated line means superior coating consistency.
  • Quality accreditation ensures superior results.
  • A true ‘one-stop-shop’ for all your coating needs.

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Pretreatment Options

We offer many pre-treatment options including e-coating, zinc flake, zinc plating and anodising for improved performance.

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All-purpose Applications

A superior and economical finish for metal furniture, automotive components, shelving, light fittings and much more.

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Architectural Applications

We offer warrantied powdercoating services for all architectural applications including for anti-graffiti use.

More on Powdercoating

Properties: Powdercoatings can be nearly any colour or gloss level (subject to volume) and can have a interesting range of surface textures that can be difficult to achieve through other coating methods. This coating can also be formulated for anti graffiti properties (easy cleaning) and in special formulations it can have anti-bacterial properties. Zinc rich formulations can be used as a primer or undercoat for a more corrosion resistant finish.

Thickness: Generally around 50 to 100 microns.

Uniformity: Not uniform with thicker coatings on exposed edges and greatly reduced thicknesses in recesses.

Hardness: Can vary with types of powder but generally polyester coatings have around 3B pencil hardness.

Wear resistance: Subject to powder type and coating thickness.

Gloss: From high gloss to textured flat finishes.

Colours: Great range of stock colours and near any colour match if quantities can justify special orders.

Flexibility: Powdercoatings in the standard polyesters formulation have limited flexibility.

Toxicity: Powder coatings are not generally recommended for food contact.

Corrosion resistance: This is subject to the type of pretreatment and undercoats, but with special undercoats, it is possible to exceed 1000 hours exposure in salt spray testing.

Chemical resistance: Again this will vary with the type of coating. Good chemical resistance can be achieved with epoxy based powders.

Standards: There are long established Australian and international standards for powdercoating on both steel and aluminium products. Impreglon Australia follows AS/NZS 4506.

Conductivity: Powdercoatings are generally non-conductive and if used as part of an electrical circuit, provision must be made for masking the coating or removal post coating.

Cost: Our charges will be subject to a number of factors such as volumes, processing conditions, and rack requirements. Like many of our processes the labour for racking, un-racking, inspection and packing play a very significant part of our overall charges. Please contact us to find out more.

Size limitations:  Impreglon can powder coat parts up to 6000mm long by 2000mm high by 900mm wide on our fully Automated line. Our batch line can coat parts up to 8000mm long by 2200mm high.

Recommended Uses

The immense popularity of powdercoating means that it tends to be the ‘workhorse’ of the finishing industry, with many applications for both interior and external use.

Before we process any work, we will always provide a specification or a service requirement for the coatings so we can ensure our process meets all your needs, no matter how great or small.

Download our Powdercoating Fact Sheet

Want more information, or prefer to download something to read later? No problem at all.
Here’s a downloadable .pdf document that covers off all of our service details so that you can read more or share it with a colleague.

IMPREGLON POWDERCOATING FACT SHEET.PDF  |  DULUX POWDERCOATING COLOURS .PDF

Powdercoating Case Study: Ingal Guide Posts

The job required that the safety posts meet a very high government specification. What others might have seen as an issue, we saw as a challenge.

READ MORE

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