LOWER INITIAL & LIFE-CYCLE COSTS – Hot-dip galvanising is the most affordable coating option compared to other commonly known protective coatings for steel. This option is also the lowest long-term cost as hot-dip galvanised steel last for decades and requires the least maintenance. This is because the material is metallurgically bonded by the molten zinc, preventing shrinkage or cracking from abrasion or water.

MAINTENANCE-FREE – Hot-dip galvanised surfaces requires minimum or no maintenance, in which touch-up or coating repaired is not required. As the galvanised coating corrodes preferentially to steel, small areas of steel exposed through damage to the coating is provided with electrochemical protection – often termed as an ‘automatic protection’ mechanism. Not only it saves cost, this option also prevents plant shutdown or non-usability of structures.  

TOTAL PROTECTION – Unlike paint coatings, every millimetre of the steel completely sealed by the hot-dip galvanising is thoroughly protected from factors that causes rusting or corrosion. It has the capability to cover recesses, sharp corners and inaccessible areas if the galvanising method is undertaken. Galvanised coatings are distinctly thicker at corners and edges, as these are the critical areas which thin out at a faster pace. The zinc coating is smooth and free from imperfections which are experienced on painted surface.

LONGER LIFE SPAN – With just a minimum galvanised coating of 85 microns ( 610 g/sq m), the steel material will have life span of up to 50 years without any maintenance. A standard minimum coating thickness needs to be applied to ensure the metallic zinc and zinc-iron alloy layers are metallurgical bonded to the steel material – as the zinc coating is harder and becomes part of the steel surface.

TIME SAVING – As the process of galvanised coating is performed indoor prior to the erection of structure, production time is not disrupted by weather condition. A fully protective coating can be applied within a short period of time, depending on the area of the steel surface. Thus, the completion of galvanising processes can be determined accurately.  

ENVIRONMENTALLY CLEAN – The galvanised surface is non-toxic and not harmful to human or animal life. It contains environmentally-safe industrial solvent blends.