Overview+

Overview

For That Extra Protection

MagnaFlow™ takes our standard zinc/aluminium alloy-coated steel substrate to the next level with the addition of magnesium. This enables the zinc to ‘flow’, which seals the cut edges, preventing exposure to premature corrosion. With a substantial 210gms/m2 coating this makes it ideal for harsher environments and those nearer the coast.

 

Projects+

North Queensland Stadium

North Queensland Stadium

MagnaFlow is a highly durable product with improved cut edge performance designed to give excellent colour retention and high formability at moderate cost.

Performance+

Performance

MagnaFlow performance testing

  • Scratch Resistance

    Good scratch resistance. Testing includes needle scratch test – no marking of paint surface when a needle with a 2kg weight attached is drawn across. ASTM D5178-13.

  • Impact Resistance

    AS/NZS2728:2013 Table 2.2 and Appendix E. No loss of paint adhesion after a test piece is struck on the reverse side with a specified force, in line with the test methodology described in Appendix E.

  • Bend Test

    AS/NZS2728:2013 section 2.6.1 and Appendix F – No loss of adhesion or paint cracking when bent around a diameter equal to five times the thickness of the sheet.

  • Fire Resistance

    Suitable for continuous service up to 100ºC. Continuous service at higher temperatures may cause some colour change and damage to the paint film.

  • Salt Spray

    Meets the requirements of AS/NZS2728:2013 Sections 2.8 and 2.10.

  • Humidity Resistance

    Meets the requirements of AS/NZS2728:2013 Sections 2.8 and 2.9.

  • QUV Resistance (Durability of coating system)

    Meets the requirements of AS/NZS2728:2013 Section 2.8 and Table 2.4. Note: Tests are conducted on a flat panel.

Colours+

Colours

Explore our most popular colours, suitable for the exterior of any project.

  • Offwhite
  • Monolith
  • Gull Grey
  • Birch
  • Wallaroo
  • Armour Grey
  • Slate Grey
  • Offwhite
  • Monolith
  • Gull Grey
  • Birch
  • Wallaroo
  • Armour Grey
  • Slate Grey
Warranty+

Warranty

Our Promise

A steel roof is most susceptible to the elements along cut edges – but not MagnaFlow. The addition of magnesium to the standard zinc/aluminium alloy makes all the difference. As time goes on it allows the protective metal coating to microscopically flow over the cut edge. At this point a sacrificial anti-corrosive reaction takes place and a robust seal is created.

Technical Information+

Technical Information

For those who like the finer details

TECHNICALConforms to AS/NZS2728:2013. Suitable for ISO9223:2012. Atmospheric Classifications C1 – C4.

SUBSTRATE Hot-dipped zinc/aluminium/magnesium alloy coated steel coil, 210gms/m2 coating weight.

PRE-TREATMENT – Corrosion resistant chromate conversion coating.

PRIMER – Flexible corrosion resistant chromated primer. Nominal film thickness 7μ ± 1μ on the top side and 5μ ± 1μ on the reverse.

FINISH COAT – Flexible exterior acrylic, polyester or modified polyester coating. Nominal film thickness 18μ ± 2μ.

BACKING COAT – Shadow Grey (standard colour) wash coat, 5μ ± 1μ nominal thickness.

GLOSS – Typical gloss levels are 25 ± 5% measured in accordance with AS/NZS 1580.602.2 (60 degrees). A range of our colours can also be supplied in a low gloss version if required.

STRIPPABLE FILMProducts can be supplied with an optional strippable protective film at extra cost. This material has a relatively short life span when exposed to sunlight and weather. It should be removed either just before, or immediately after installation.

View Technical Info

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