- 7A Lorong Anggur, Visa Industrial Estate, Kolombong, 88450 Kota Kinabalu, Sabah, Malaysia
- 088-382 815/811
- 088-382 813
- sales@bristeel.com (Get Price Quote)
The steel grade used is G300/G550 and the thickness of steel used varies from G24 to G28.
All steel sheet used in the manufacture of the roofing sheets shall have a protective layer of zinc coating conforming to class AZ90 – AZ200
The zinc coating is the protective cover to the steel against corrosion. If the coating is accidentally scratched or breached so as to expose the steel, then the Galvanic Action Protection will take place. When zinc and steel are together in the electrolytic solutions such as water or seawater, the zinc then act as a sacrificial anode and corrode first because of the differences between their elector-motive forces. This will cover the exposed steel where the zinc is adjacent to it to prevent the steel from corrosion.
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