If you have pre-customised this work section using the "questions and answers" provided as part of the downloading process, it may be necessary to amend some clauses to suit the final project-specific version.
The section must still be checked and customised to suit the project being specified, by removing any other irrelevant details and adding project-specific details and selections.
This section relates to the preparation of surfaces, and the application of Dulux decorative powder coatings.
Modify or extend the above description to suit the project being specified.
Refer to ~ for ~.
Include cross references to other sections where these contain related work.
Refer to the general section 1232 INTERPRETATION & DEFINITIONS for abbreviations and definitions used throughout the specification.
The following abbreviations apply specifically to this section:
American Architectural Manufacturers Association
Dry Film Thickness
Window & Glass Association NZ
Refer to the general section 1233 REFERENCED DOCUMENTS. The following documents are specifically referred to in this section:
Methods of test for paints and related materials - Determination of dry film thickness on metallic substrates - Non destructive methods
Metal finishing - Preparation and pretreatment of surfaces - Removal of oil, grease and related contamination
Metal finishing - Preparation and pretreatment of surfaces - Power tool cleaning
Metal finishing - Preparation and pretreatment of surfaces - Abrasive blast cleaning
Metal finishing - Preparation and pretreatment of surfaces - Pickling
Metal finishing - Thermoset powder coatings for architectural applications of aluminium and aluminium alloys.
Metal finishing - Thermoset powder coatings
Quality management systems - Requirements
Working Safely with Hazardous Substances (hazardous substances toolbox) www.hazardoussubstances.govt.nz/
Window & Glass Association NZ (WGANZ) documents:
Powder Coating Quality Assurance System
Delete from the DOCUMENTS clause any document not cited. List any additional cited documents.
Refer to the following related documents when preparing this section:
Guide to the protection of structural steel against atmospheric corrosion by the use of protective coatings - Paint Coatings
Specification for powder organic coatings for application and stoving to aluminium alloy extrusions, sheet and pre-formed sections for external architectural purposes, and for the finish on aluminium alloy extrusions, sheet and pre-formed sections coated with powder organic coatings
The hazardous substances toolbox
BRANZ BU 638
Finishes on architectural hardware
BRANZ BU 634
BRANZ BU 636
Protecting Glass From Damage
Related documents not referred to in this section are:
Voluntary specification, performance requirements, and test procedures for pigmented organic
coatings on aluminium extrusions and panels (with coil coating appendix)
Voluntary specification, performance requirements and test procedures for high performance organic coatings on aluminium extrusions and panels
Voluntary specification, performance requirements and test procedures for superior performing organic coatings on aluminium extrusions and panels
Manufacturer's and supplier's documents related to this section are:
Dulux specification sheets and product data sheets
Copies of relevant literature are available from Dulux
0800 800 975
It is important to ensure that all personnel on site have access to accurate, up to date technical information on the many products, materials and equipment used on a project. In most cases individual products are not used in isolation, but form part of a building process. Also a particular manufacturer's and/or supplier's requirements for handling, storage, preparation, installation, finishing and protection of their product can vary from what might be considered the norm. Access to technical information can help overcome this potential problem.
Use for listing all warranties relating to this section. Supplier and manufacturer warranties are those that are freely offered by the supplier or manufacturer, similarly installers and applicators. They are usually in their standard form and subject to their terms and conditions. Check the general section 1237 WARRANTIES for the date of commencement of warranties; which is normally practical completion of the contract, although not all suppliers, manufacturers, installers or applicators will agree to this. Refer to the chosen conditions of contract as it may also contain information on warranties.
Warrant this work under normal environmental and use conditions against failure:
Warranty period - materials:
Applied in accordance with application and preparation procedures according to AS 3715 as specified in the Dulux specification sheets.
Warranty period - execution:
Powder coating range specified will reflect warranty period.
Refer to the general section 1237 WARRANTIES for additional requirements.
To view warranty detail go to: www.duluxpowdercoatings.co.nz/information/warranty/
Substitutions are not permitted to any specified Dulux powder coating product or associated accessories.
Current certification as an Dulux Powder coatings Registered Applicator.
To obtain warranties, applicators must be Dulux Registered Applicators.
To view Registered Applicator list go to:
Provide Dulux powder coating manufacturer's maintenance instructions for the owner including frequency of cleaning.
Refer to Dulux DuSpec specification sheets and product data sheets for details or go to:
To comply with product warranties, the building owner has the responsibility to ensure powder coated components are maintained and cared for in accordance with the Dulux care and maintenance instructions.
Maintain quality assurance programmes to AS/NZS ISO 9001 or other industry recognised quality procedures for powder coating and other specialist coatings as necessary to ensure that work is performed in accordance with this specification and the qualifying requirements of the contract documents.
Visit www.duluxpowdercoatings.co.nz or telephone Dulux Powder & Industrial Coatings (0800 800 975) for the material safety data sheets for every applicable product and comply with the safety procedures listed. Keep sheets on the site.
Refer to the general section 1270 CONSTRUCTION for details of how samples will be reviewed and how instructions to proceed will be given. Provide the following samples for review:
Time for review:
10 working days ~
10 working days ~
10 working days ~
The intention of this clause is to allow samples to be obtained that are not otherwise readily available to a reviewer.
Delete rows and columns not required or add "n/a".
Describe the sample, size etc.
Sample of the specified finish to all exposed window and door sections, in the selected colour, including a statement of the minimum film thickness.
Portable sample for review
Portable control sample
Fixed sample for review
Fixed control sample
Control samples define requirements for type and quality and are used for comparison purposes throughout the contract.
A "portable" sample is a sample that is easily movable, convenient for carrying. A "fixed" sample is a sample (semi) permanently placed. Expand on these terms as necessary.
State number of samples required, e.g. a minimum of three control samples - portable allow a sample to be retained on site with the other samples retained by the contract administrator and contractor.
Identify location of fixed samples, e.g. off site, on site, in situ
Describe any additional documents required to support the review.
Modify to suit the project, add additional reviewers if required.
Time for review:
Alter time if required. Expand to state timing in relation to when and where the sample is provided, e.g. at first site meeting.
Add any critical items. Provide clarity for work that is not dependent on the review to continue.
Certify on request, compliance with this specification and support with control and sampling records.
Test for film thickness to AS/NZS 1580.108.1
The coating should be applied by an applicator who can certify that the coating has been applied in accordance with the specification.
Permit representatives of Dulux to inspect the work in progress and take samples of their products from site if requested.
Single coat polyester based powder coating for use on interior or exterior architectural aluminium products. Refer to SELECTIONS for system and colour.
Suitable for interior or exterior use.
Powder coat articles to AS 3715, AS 4506 and WGANZ PQAS for powder coatings on architectural aluminium products, and as specified.
Remove all foreign matter from metal surface to be powder coated. Remove scale, grease, cutting oil, welding splatter, grind off burrs, welding slag and sharp arrises and all other defects that could affect appearance.
Condition the surface to render it suitable for the selected coating to be applied. This pre-treatment should impart uniformity throughout all treated workpiece surfaces, irrespective of the source of the metal or the contaminants that might adhere.
Attention to this pre-treatment stage is essential in order to achieve the full potential of the powder coating. Surface pre-treatment varies depending on specific end-use requirements of the finished products - from a single-step cleansing operation to a multi-stage sophisticated pre-treatment which deposits a conversion coating on the surface of the metal.
Prepare steelwork in conditions suitable for the application of coatings. Carry out preparation and coating applications under cover, in a controlled environment and with adequate lighting.
Remove rust, scale and zinc oxides using acid or alkali solution.
Water rinse and dry. If conversion coating system does not follow, the work must be dried rapidly and effectively to prevent rusting of the surface.
Remove oil and grease by the use of solvents, detergent, emulsion cleaners and alkali cleaners. Scrape and power wire brush to minimum class St 2 finish to AS 1627.2. Clean to bright metal, avoid producing a polished surface. Check that no burrs or sharp arrises remain which may prevent the full coating thickness being attained. Alternative method includes abrasive blasting AS 1627.4, Class 1.
Delete this clause if the following clause is used.
Remove oil and grease by the use of solvents. Abrasive blast clean to a class 2.5 finish to AS 1627.4. Clean to bright metal, but avoid producing a polished surface. Select grit type and equipment such that the cleaned surface profile between peaks and valleys does not exceed one third of the dry film thickness. Check that no burrs or sharp arrises remain which may prevent the full coating thickness being attained.
Ensure substrate is clean and pre-treated as required. Components must receive a full multi stage chromate or chrome phosphate conversion coating to clean and condition the substrate.
Either iron phosphate or zinc phosphate conversion coatings to provide corrosion resistance.
Fully de-gas the substrate by heating the object to a temperature 15°C above the peak metal temperature.
Remove all slag. For welds exposed to view, remove splatter and grind to a neat, clean finish.
Sand blast or wire brush after completion of the fabrication. Preclean steelwork to AS 1627.1 followed by acid pickling to AS 1627.5. Apply the required coating to the coating manufacturers' requirements. Apply coating within 4 hours of preparation. Work off site wherever possible. Surfaces that are in contact or near contact to receive specified coating before assembly.
Remove grease, oil and other solvent-soluble contaminants by wiping with mineral turpentine or white spirit. Finally wipe with a clean solvent. Allow to dry and proceed with the next operation immediately. Abrade surfaces to a medium coarse type finish to provide an adhesion key.
Ensure substrate is clean and pre-treated to manufacturer's recommendations prior to priming commencing. Apply the relevant primer as a system with Dulux polyester topcoat. Carefully prepare the steel surface and apply Dulux primer to manufacturer's instructions:
For less aggressive environments or when abrasive blasting is not possible, a chemical pre-treatment can be used but reduced performance is to be expected.
Apply Dulux powder coatings to the recommended average thickness specified for the selected powder coating on architectural aluminium products.
Pre-treatment to manufacturer's recommendation.
In situ repair work of warranty polyester or fluoropolymer coated aluminium is only permitted after receiving written authority. All repair work to Dulux manufacturer's recommendations. Replace all damaged material.
Provide protective coverings and coatings where required to prevent marking of surfaces visible in the completed work and to protect aluminium joinery from following trades. Remove protection on completion.
Modify this clause to suit project requirements. Protective coverings and coatings are not usually supplied automatically. Additional protective coverings are required to protect from following work such as plastering and painting. Refer to AS 3715, appendix D for further information.
Ensure all elements are free of marks or blemishes.
Replace damaged, cracked or marked elements.
Leave work to the standard required by following procedures.
Substitutions are not permitted to the following, unless stated otherwise.
For specification assistance go to:www.duluxpowdercoatings.co.nz/
These suggested schedules may be included here. However they may also be part of a finishes schedule located elsewhere in the specification, may be included on the drawings, or even documented separately.
Low VOC Powdercoating
DULUX Duratec (NZDP0968) DuSpec NZSP1312
Matt or Satin
Low VOC Powdercoating satin
DULUX Electro™ (NZDP02221) DuSpec NZSP12317
Low VOC Powdercoating
DULUX Duralloy (NZDP0967) DuSpec NZSP1308
Matt or Satin
Low VOC Powdercoating satin
DULUX Fluoroset FP (NZDP1246) DuSpec NZSP1695
Low VOC Powdercoating gloss - anti graffiti
DULUX Anti Graffiti (NZDP0971) DuSpec NZSP1314
Antibacterial Low VOC Powdercoating Clinikill®
To the Datasheet for the powder type used
To the Applicators Manual for the powder type used