Manufactured in Australia and tested over the last 50 years in some of the harshest Australian conditions, genuine COLORBOND® steel is far more than just ‘paint on steel’.

Source - Colorbond Steel.

5 Layers of Protection

1. The steel base is manufactured to meet relevant Australian Standards, ensuring strict adherence to the required grade and strength
2. The base is then coated in BlueScope’s industry-leading metallic coating incorporating Activate® technology¹, to provide enhanced corrosion resistance
3. A thin pre-treatment layer is applied to optimise the adhesion of further coatings
4. A corrosion inhibitive primer is baked onto the surface
5. A topcoat of specially developed, exterior grade paint with Thermatech® solar reflectance technology² is baked on to provide resistance to chipping, flaking and blistering and to ensure the finish retains its look for longer.

Activate® Technology

Activate® technology, is BlueScope's industry leading, patented, metallic coating technology.

The unique composition and microstructure of the aluminium / zinc / magnesium alloy coating (AM) was developed for improved corrosion resistance compared to aluminium / zinc alloy coating (AZ), and acts in three ways:

Source - Colorbond Steel.

1. Magnesium, aluminium and zinc compounds are strategically positioned in the coating to provide sacrificial protection.
   
   
   
2. Magnesium compounds encourage the formation of a more robust barrier, slowing the rate of subsequent corrosion.
   
   
   
3. Magnesium compounds also 'activate' the metal coating resulting in more effective, longer-lasting sacrificial protection