ADVANTAGES OF HOT DIP GALVANIZING
01、 Long Life
The life expectancy of galvanized coatings on typical structural members is far in excess of 50 years in most rural environments, and 20 to 25 years plus, even in severe urban and coastal exposure.
02、Toughness
The outer layer of pure zinc is relatively soft and absorbs much of the shock of aninitial impact during handling, sometimes even harder than the base steel itself. This combination provides a tough and abrasion resistant coating.
03、Protection by sacrificial action
Zinc corrodes in preference to steel and sacrifices itself to protect the steel, hence hot dip galvanizing will provide this sacrificial action.
04、Complete Protection
Every part of a galvanized article is protected, even recesses, sharp corners and inaccessible areas. No coating applied to a structure of fabrication after completion can provide the same protection.
05、Lower Initial cost
For many applications the cost of hot dip galvanizing is reason for this is simple: alternatives such as painting are very labour intensive compared with galvanizing,
whichis a highly mechanised, closely controlled factory process.
06、Ease of Inspection
Galvanized coating are assessed readily by eye, and simple non-destructive thickness testing methods can be used.
07、 Reliability
Galvanizing is generally carried out in accordance to BS EN ISO 1461, and standard minimum coating thicknesses are applied. Coating life and performance are reliable and predictable.
08、Fastener erection time.
As galvanized steel members are received, they are ready for use. No time is lost on-site in
surface preparation, painting and inspection. When assembly of the structure is complete, it is
immediately ready for use, or for the next construction stage.
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