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The COLORSTEEL MAXX paint system consists of an AZ200 ZINCALUME steel substrate to which a multi coat paint system is applied. The system is designed to provide protection against corrosion in areas where severe to very severe environmental conditions are experienced.

The COLORSTEEL MAXX paint system will exceed the service life of most traditional post painted systems.

Key Features
  • Specifically developed to withstand higher atmospheric salt concentrations, COLORSTEEL MAXX is ideal in very severe building environments like those experienced along New Zealand's rugged coastline.
  • Incredibly resistant to corrosion.
  • A 3-layer organic coating consisting of an anti-corrosive and bonding pre-treatment layer, an anti-corrosive primer and a top coat, applied to both sides of the material
  • COLORSTEEL paint technology provides exceptional resistance to chalking and fade
  • Receives Environmental Choice Certification
  • Environmental Product Declaration available
  • Available in a range of colours and profiles to suit any home or building
  • Available with COLORSTEEL Matte option — see Matte listing
Environmental Choice (ECNZ) Licensed
ECNZ Licensed
Homestar / Green Star (Envirospec) Compliant
Homestar / Green Star
NZ Made
NZ Made
Scope of Use
  • COLORSTEEL MAXX is suitable for a wide range of roll-formed roof and wall claddings, rainwater accessories and general building products
  • Warranted in very severe environments for roofing, wall cladding, spouting and fascia*

*Please refer to New Zealand Steel's Environmental Categories, Warranty and Product Maintenance Recommendation guide for further information.

Limitations on Use

COLORSTEEL MAXX products are not recommended for the following applications:

  • Intensive animal shelters, where the build-up of alkaline fumes may occur
  • Swimming Pools, and other structures with continually wet internal environments
  • Buildings with harsh internal environments such as galvanising plants, tanneries and meat works
  • Fertiliser works
  • Embedded in concrete
  • In contact with soil, bark or similar
  • Geothermal areas

Before using COLORSTEEL MAXX products in these environments please consult one of our Business Development Managers for a recommendation.

Copper or brass pipes must not be allowed to discharge onto or come into contact with COLORSTEEL pre-painted steel products. The use of other materials in proximity to COLORSTEEL MAXX must be carefully considered — the COLORSTEEL Incompatible Materials bulletin should be used as reference.

The mixing of COLORSTEEL brands, such as ENDURA and MAXX, between accessory feed and roof cladding is acceptable where appropriate. However, mixing with other brands of pre-painted materials on the same building is not recommended.

Statement of Building Code Compliance

COLORSTEEL MAXX is a Type 6 product in accordance with AS/NZS 2728:2013 and therefore is consistent with the NZ Building Code for use in environments as described in Acceptable Solution E2/AS1 Table 20.

In-Service History

COLORSTEEL MAXX is manufactured by New Zealand Steel Ltd. COLORSTEEL is made, tested and trusted for New Zealand conditions.

Other Performance Attributes

Colour Retention:

  • Colour retention (CIE Lab units Delta E) is 8 units maximum after 10 years exposure, and 10 units maximum after 15 years exposure. Chalk rating (AS 1580:481.1.11:1998) is no more than 4 after 10 years exposure
  • Solar reflectance and light reflectance values vary with colour, refer to COLORSTEEL Light Reflectance brochure for details


  • Steel substrate may be either G300 or G550 consistent with AS 1397:2011
  • Metallic coating is AZ 200 consistent with AS 1397:2011
  • COLORSTEEL MAXX is Product Type 6 consistent with AS/NZS 2728:2013
  • Tolerances are consistent with the requirements of AS/NZS 1365:1996

Fire Resistance:

  • COLORSTEEL MAXX is rated as a Group 1-S material and has an average specific extinction area of 107.0m²/kg, a peak heat release rate of 15.3 kW/m² and total heat released of 0.44 MJ/m² when tested in accordance with ISO 5660:2002 Part 1 and Part 2

Drinking Water:

  • COLORSTEEL MAXX samples tested in accordance with AS/NZS 4020:2005 passed the requirements for products in contact with drinking water
COLORSTEEL MAXX Product Technical Statement
Environmental Categories, Warranty & Product Maintenance Recommendations
COLORSTEEL Installers Guide
Choosing COLORSTEEL Brochure
Colour Range

COLORSTEEL® is made, tested and trusted for New Zealand conditions — Inspired by surrounding colours and landscapes, COLORSTEEL strives to create products that will in turn inspire.

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