Zincshield is a zinc rich epoxy modified thermosetting powder primer designed to inhibit rust and subsequent adhesion loss on ferrous metals and is a key component of Dulux Steel Shield™ Warranty systems suitable for use with top coats from the Fluoroset®, Duratec®, Electro®, and Duralloy® ranges.

It is ideal for use:

On blasted mild steel, bright/semi bright steel, black steel and blue steel
Under topcoats on the following interior and exterior projects:


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Zincshield^®

Features

Improved corrosion resistance and durability
Excellent corrosion resistance
Film integrity
No solvents or emissions

Benefits

Sacrificial layer increasing service life
Long intact life of coating
Less waste and pollution to the environment
Excellent corrosion protection

Product Information

General Preparation & Application Care & Maintenance Specification Download

Project Types

Exterior projects (All NZ Building Classifications)

All commercial buildings
All residential buildings
Non-habitable

Interior projects (All NZ Building Classifications)

All commercial buildings
All residential buildings
Non-habitable

Uses

Suggestions for use include ironwork, street and garden furniture, gas cylinders and tanks, agricultural machinery, transport (trailers), valves, and transformers.

Surfaces

On blasted mild steel, bright/semi bright steel, black steel and blue steel.
Zincshield is not suitable for exterior use without a topcoat. It contains an epoxy component which will chalk on exterior exposure.

Technology

Zinc rich modified epoxy based powder primer

Range

Zincshield

Look

Solid look

Finish

Matt undercoat

Interior or Exterior

Interior and exterior use as a basecoat only

Pre-treatment of Steel

Steel substrates shall be prepared as follows:

1. Wash and degrease all surfaces to be coated in accordance with AS1627.1 with a free-rinsing, neutral/alkaline detergent, in strict accordance with the manufacturer’s written instructions and all safety warnings.
2. Wash with fresh potable water and ensure that all soluble salts are removed. Testing if required can be done in accordance with AS 3894.6 for the determination of residual contaminants.
3. Grind all sharp edges with a power tool to a minimum radius of 2mm.
4. Hand or power tool clean welds to AS1627.2 to remove roughness. Remove filings, preferably by vacuum.
5. Abrasive blast clean all steel surfaces to be powder coated in accordance with AS 1627.4 to the visual cleanliness standard of SA 2.5. Use a medium that will generate a surface profile of 35 to 65 microns. In situations where it is not possible to prepare your item on all surfaces as described above, for long term protection against corrosion it is strongly recommended whenever possible, that an alternative substrate such as aluminium be considered. Failure to suitably prepare your steel substrate may void your Steel Shield™ warranty.
6. The steel must be coated within 4 hours of blasting and stored in an area which is clean and dry. Dulux Accredited Powder Coaters must comply with the metal pre-treatment guidelines set out in the Accredited Steel Shield™ Manual.

Application

Application Method

Electrostatic Spray

Cure Schedule

Assuming top coat applied within 12 hours, a partial cure may be possible – consult the TDS for further advice.
This partial cure is referred to as a green cure. Green cured metal is prone to chipping/cracking if not handled with care. Ensure green cured metal is protected from mechanical damage caused by unloading/stacking.
Use top coat cure schedule to complete cure of Zincshield®.

A topcoat must always be applied.

It is recommended that Zincshield® be top coated within 12 hours due to a possible moisture uptake of the coating

Project Suitability – Steel

Zincshield is a key component of the Dulux Steel Shield™ warranty systems. Use the following table to help identify the product choice you have to gain a Steel Shield™ warranty on your project and where Zincshield is appropriate. Refer to the conditions information to determine the environment that your project will be exposed to. Click on the table below for a larger version.

All Dulux powder products are NOT suitable in strongly acidic or caustic environments so the PH must be between 5 and 9.
1. Fluoroset may be suitable in locations <10m from the high tide line e.g. harbours (contact Dulux for advice.)
2. Electro and Duratec are only suitable for coastal environments >10m from the high tide.
3. Duralloy is only suitable for coastal environments >100m from the high tide line.
* In Mild (Medium) exterior environments and Moderate (Medium) interior environments a 10 year corrosion warranty is available with a Zincshield, Grey Primer/ E-Prime and the indicated top coat system. Without Grey Primer/E-Prime a 5 Year corrosion warranty is available.
♦ Duratec Intensity – Steel Colour Warranty 15 Years.
Please refer to Interior and exterior environments close to liquids for warranty implications where powder coatings may be in close proximity to liquids other than the sea.

Conditions

1. Geothermal environments greater than 500m of a bore, mud pool, steam vent, or other source with a pH between 5 and 9. For pH outside this consult Dulux.
2. Geothermal hot spots within 500m of a bore, mud pool, steam vent, or other source.
3. All offshore islands including Waiheke Island, Stewart Island, Fraser Island and Pacific islands eg PNG, Fiji, Samoa, Tonga, Tahiti, Noumea
4. The corrosion rates for the first year of exposure for the different corrosivity categories of Aluminium and Carbon (Mild) Steel are determined by the following standards:
SNZTS 3404 – Standards NZ Technical Specification – Durability requirements for steel structures & components
AS 2312.1 – Guide to the protection of structural steel against atmospheric corrosion by the use of protective coatings. Part 1: Paint coatings
ISO 9223 – Corrosion of metals and alloys – Corrosivity of atmospheres – Classification, determination and estimation

Interior and Exterior environments close to liquids other than the sea

1. Aggressive liquids such as Chemically Treated liquids and Salt Water must be cleaner off immediately as per the Dulux Care and Maintenance guide.
Please note chemically treated water includes antimicrobial treatments, e.g. in pools, anti-corrosive chemicals, and soapy water in bathrooms and showers.
■ Where indicated Steel Shield warranties are available on areas >than 1m from the liquid.
✓ Where indicated Steel Shield warranties are available on areas >than 2m from the liquid (ie outside the splash zone).
○ Where indicated Steel Shield warranties are available on areas >1m from the liquid on interior applications and >2m on exterior applications
● Where indicated Steel Shield warranties are available any distance from the liquid.
Steel Shield warranties are only available when applied by a Dulux Accredited Powder Coater to the warranty specification on recommended project types and conditions.
All Dulux powder product are NOT suitable in strongly acidic or caustic environments so the PH must be between 5 and 9.
Steel Shield warranties are not available if the powder coating is immersed in any liquid.

Advice Line

Our dedicated consultants can help simplify the specification process, saving you time and money by providing the right coating advice for your project.

Call 0800 800 975

A zinc rich epoxy modified thermosetting powder coating designed to inhibit rust and adhesion loss on ferrous metals and has been designed as a powder coating undercoat.

Zincshield®
Matt
9907036M

Zincshield Zinc Rich Epoxy Powder Primer

Ideal for structural steel on all projects