Colours that Inspire.

Phone 13 24 99 | +61 3 8787 4500

How to Specify

Specification of powder coating finishes on architectural aluminium and other metal substrates can be a complex process and following items should be considered;

 

  • What is the most appropriate product for your project?
  • Does the product offer a genuine performance warranty?
  • What assurance is there that the coating is applied correctly?
  • How do you ensure that your specification is not misinterpreted?

 

Our dedicated and knowledgeable consultants can also help simplify the specification process. Save time and money by getting the right coating advice. Call us on 13 24 99.

 

Perforated and Expanded Aluminium

Our research and development team has determined that a primer be applied when powder coating perforated and expanded aluminium. This will ensure;

  • an adequate film and therefore protection for sharp edges
  • more even coverage
  • reduces risk of film thinning on edges during the curing process
  • minimizes issues such as filiform corrosion

 

How to specify for perforated and expanded aluminium – example only

1st coat Primer – (Dulux E-Prime™ 953 -88386) to be applied in accordance with AS 3715-2002.

2nd coat Top coat/color – (Dulux Duratec® Zeus® Dark Grey Matt 900- 51275) to meet AAMA 2604. Product must be applied by a Dulux Registered Aluminium Applicator and must offer 20 year durability warranty.

 

For further information and a to have a detailed specification written for your project, please contact our specification team on 13 24 99 (Option 2).

Environmental Considerations

Conditions in each location can vary greatly and this will affect the performance of various finishes. So it is vital that before specifying a given powder coating, the environmental influences on the project are understood. The resistance of each powder coating to the physical and chemical extremes of these climates determines the most suitable product.

Mild (to Moderate)

  • Remote from coastal, heavy industrial or tropical locations
  • With very light marine proximity, such as sheltered bays which are well away from coastlines
  • Sheltered from marine coastal locations or from industrial fallout

Tropical

  • In high humid locations, typically 65% – 100% all year round
  • Remote from coastal activity

Severe

  • In marine locations, directly in the path of sea spray
  • In heavy industrial locations

Extreme

Some environments are so extreme, that the performance of any surface finish may be compromised. For severe environments, whether they are marine and/or industrial, we recommend that you contact Dulux before specifying any powder coating finish, to ensure the site meets with our service and warranty conditions.

 

Project Considerations

  • Residential properties are typically easy to maintain, given their height and access.
  • High-rise projects are less sheltered from neighbouring buildings, raising their exposure and reducing their ease of maintenance.
  • Monumental projects attract the most attention and have the highest standards required to uphold the reputation expected from landmark sites.

 

Project Type Environment Recommended AAMAStandard Dulux Powder Coating
 Monumental  Mild, Tropical or Severe  AAMA 2605 Fluoroset®
 Prestigious Commercial Development  Severe  AAMA 2605- Fluoroset®
 Prestigious Commercial Development  Mild or Tropical  AAMA 2604 Duratec®/Electro™
 Commercial Development(>3 levels)  Severe  AAMA 2604 Duratec®/Electro™
 Commercial Development(>3 levels)  Mild or Tropical  AAMA 2604 Duratec®/Electro™
 Commercial Development(<4 levels)  Mild, Tropical or Severe  AAMA 2604 Duratec®/Electro™
 Residential (>3 levels)  Severe  AAMA 2604 Duratec®/Electro™
 Residential (<4 levels)  Mild or Tropical  AAMA 2604 Duratec®/Electro™
 Residential (<4 levels)  Standard  AAMA 2603 Duralloy®

 

Substrate Considerations

There are many metal substrates that can be used for architectural applications and their performance is particularly influenced by the following

 

  • The substrates configuration & fabrication
  • How the substrate is cleaned & pre-treated prior to powder coating
  • The type of powder coating being applied
  • The environment in which the substrate is exposed

 

Powder coatings offer an attractive and durable finish, but it is essential that consideration of industry standards (AAMA and Australian Standards), together with Care & Maintenance are taken into account to ensure that the finish achieves and maintains the expected service life.

The guidelines below provide a summary of information for the most common substrates for architectural applications. For additional information on metal preparation or advice on other metal substrates, such as brass, copper or galvanised sheeting, please refer to Australian Standard 4506-2005.

 

Aluminium

Aluminium is a versatile metal commonly used for fabrication and finishing due to functionality. Powder coated aluminium has demonstrated outstanding durability in all climates and environments.

Steel

Renowned for its strength and reinforcement, steel is best prepared using a combination of chemical and/or mechanical surface preparation, a powder coating primer and a premium Dulux top coat. Please contact our Customer Service Team prior to specification or use. Colour warranties on steel will be subject to individual written approval by Dulux.

Hot Dipped Galvanised

Renowned for its corrosion protection of the base metal steel, a galvanised substrate with a powder coated surface can appear to offer a great marriage of durability and corrosion resistance. However, extreme care is required in the preparation, application and installation of powder coated galvanised steel.

Steel that has been galvanised is designed to protect the base metal. The top galvanised layer is the sacrificial offering to the inevitable progression of corrosion. If the galvanised surface is powder coated, the galvanised layer underneath the powder coating may corrode overtime and so, the adhesion of the powder coating may be compromised. This is especially pertinent when the product is located in or near severe environments such as marine or industrial areas.

 

Colour Considerations

On occasions, some colours, whether powder, paints or furnishings may share the same colour name but be entirely different. This is especially true of other powder suppliers who use Dulux colour names for their products, but these colours rarely match. When choosing colours, remember to specify both the Dulux product code and product name.

 

If the colour does not appear in our standard ranges of products, Made to Order colours can be produced. However, as each specific colour needs to be formulated and individually manufactured, there are minimum quantity requirements. Please contact our dedicated consultants team for more information.

 

Warranty Considerations

Only Dulux Registered Applicators are issued with our Durability Warranties after demonstrating their capability to meet stringent quality conditions and international standards. Each Dulux Applicator has invested heavily in their business to guarantee their performance in preparing the aluminium and applying Dulux coatings. See our full list of Dulux Registered Applicators.

 

For a surface coating to provide maximum performance, the metal to be coated must be properly cleaned and prepared, the powder must be applied in accordance with Dulux recommendations and the coated metal shall be thoroughly tested for quality assurance before being released for fabrication.

 

Specifying the correct AAMA Standard

With over 50 years of experience, the AAMA (American Architectural Manufacturer’s Association) is regarded as the standards leader for finishes on architectural aluminium. The AAMA objective is to develop and improve quality standards, encourage research & development and set benchmarks for product performance of architectural products.

Specifying powder coatings that comply with one of the below AAMA standards removes all doubt for the fabricator and applicator. The supply chain will be aware of the standard of product demand for the project, as the standards spell out the level of both colour performance and film properties required.

 

The Dulux powder coating products that meet or exceed these standards are shown below:

 

Fluoroset® Duratec® Electro™ Duralloy®/Duralloy® FG
 AAMA 2605 Yes No  No  No
 AAMA 2604 Yes Yes Yes  No
 AAMA 2603 Yes Yes Yes  Yes
 Coating Type Ultra Durable Fluoropolymer Super Durable Polyester Super Durable Polyester Durable Polyester

What to Watch Out For

Substitution

Specify the period of coverage for both colour retention and film integrity warranty, so that  a substitute product with a warranty of equivalent film integrity but less colour retention is not used as a replacement.

Tenders

Only tenders based on quotes provided by a Dulux Registered Applicator would be accurate. Verify that the applicator is authorised to apply these warrantable products by requesting a copy of the Dulux Registered Applicator certificate from the applicator.

Specification Checklist

√   The most appropriate AAMA specification
√   Environmental aspect and project type
√   Product features, including performance and colour range
√   Design and installation considerations
√   Warranty terms and conditions

 

Ensure the specification of the chosen finish is clearly in line with the below points:

√   Specify the Dulux “Product Name and Code” to meet
√   Nominate the AAMA standard required
√   To be applied by a Dulux Registered Applicator
√   Specify the durability warranty period

 

For example:

“Fluoroset® Xtreme™ Coin Satin 964-7289S to meet AAMA 2605. Product must be applied by a Dulux Registered Applicator and must offer a 30 year durability warranty.”