Steel Building Projects

Think Precision Engineering

Think Steel Building Projects




Its coating consists of 55% Aluminium, 43.5% Zinc and 1.5% Silicone and was developed after extensive research into improving the traditional performance of galvanised iron.

CHROMADEK ® is Mittal Steel South Africa’s trade name for a range of colour coated sheet products. It is produced by coating sheet on a sophisticated coil coating line, where steel substrate surfaces are thoroughly chemically cleaned before a primer coat is applied to either one or both sides of the sheet.

Products: Description and Features:

Roof sheeting made from ZINCALUME® steel is available in a range of profiles. The zinc/aluminium alloy coating on ZINCALUME® steel imparts corrosion resistance of up to four times the life of galvanised steel.

After elevated temperature curing, the top coat is applied, to either one or both sides and again cured in gas-fired furnaces. This coil coating process allows accurate control, in a controlled factory environment, of the important parameters for application of paint coatings, such as cleaning, pre-treatment, paint application and curing conditions.


  • Durable and strong

  • One of the most thermally efficient roofing materials available today

  • Superior corrosion resistance

  • Attractive

  • A deterrent against intruders

  • Excellent resistance to impact from hail

  • Excellent flexibility in design, can be curved or cranked for truly individual designs

  • Flexibility of design allows for both traditional straight roof sheeting as well as innovative curved or cranked roofing designs

  • Easy maintenance

  • Weather tight and secure when installed to manufacturer's specifications.

  • Designed to provide superior corrosion protection under conditions where the performance of unpainted galvanized sheeting may prove inadequate

  • Excellent flexibility

  • Excellent paint adhesion and corrosion resistance enhanced by careful preparation of the steel surface prior to paint application

  • Intended for use under rural, mildly chemically polluted or moderate marine conditions

  • Available in a range of 14 standard colours

  • Attractive

  • Weather tight and secure when installed to manufacturer's specifications.

Zincalume Colours:

Chromadek Colours: