EcEconomical advantages of hot dip galvanization

Low cost:

 There is a general rule in business. Who produces quality at a low cost, wins. In most application, galvanization is the cheaper among all alternate coating. In the long run the cost of galvanization is now below the cost of dyeing. (pls.see graphs) Alternative coating costs (especially dyeing) are above costs of galvanization. It is obvious: hot dip galvanization is a process where lage quantities of pieces can be coated with less manpower and with low costs. 

Surely, nickel, cromium and gold are better against corrosion than zinc. But you cannot coat your entire steel construction building with gold. Of course, it is your call. On the other hand, with coatings of nickel, copper and brass, the steel is exposed directly to the corrosive environment when the coating is damaged. The steel corrodes but the coating stays the same. But in HDG zinc sacrifeces itself first. Further more, in local blows, the corrosion stays only at the damaged parts. As it does not spreads, it can be repaired by the reaction at the damaged area. 

Fast application: 

While the protection can be applied within a few minutes with HDG, you need several weeks for four layers of dyeing and you need to wait for the weather conditions. In HDG the protection is applied in a factory and you will take the pieces to be assembled in their place. You will not need to pay for secondary transportation. 

Low Service Cost: 

While the first application of HDG is cheaper, depending on the conditions of the environment you will not need repair or maintenance for up to 20 years. This eliminates the cost of Services. On the other hand, other coatings, like dyeing, needs to be replaced many times in the 20-year-span. Difficult to reach parts, intertwined parts, and facilities where you cannot stop production, you will eliminate the maintenance problems. 

Prolongs the life of steel: 

The servicable life of HDG can be estimated in every environment. The advantages of HDG, which has a long life even under the worst weather conditions, are proven by researches and experiences. It survives without maintenance for 10 to 20 years under the worst industrial environment and undersea and up to 25 years in less damaging environment. In cases where maintenance is needed, the process is far more easier than the other types of coating.

You can trust is to the end: 

HDG is a simple and comprehendable process. The thickness of coating is known precisely so the life limit can be estimated beforehand. Coating is designed so that protection will be the same on every surface. Galvanization is one of very few types of coating which was explained in the standards. HDG is applied according to ISO 1461 and TSE 914 norms. There cannot be much interference to the galvanization process. There is no term like “stealing from the material” in galvanization. This means, you will know what you are buying beforehand. There are no complex dyeing formulas, brand bombardments and application damages. Galvanization is galvanization. You apply it once. You get your certificate. And that is all. 

Easiness in Quality Check: 

Coating check is the checking if the coating’s thickness is within the starndards of ISO 1461, ASTM A 123, BS 729, DIN 50976, TSE 914. Tests can be conducted by micrometers or non-destructive inspection methods. (see standards) 

Coating is sturdy, integral, protects 3 ways, wraps totally: 

HDG is the only coating which can form metallic bonds with steel. Because of this, galvanized steel is much resistant to mechanical damages occuring while transporting, storing, shipping and assmebling. This allows the galvanized steel to be shipped to off-shore countries. And the galvanized steel can be used in designs where there can be erosion to the steel, because of this sturdy coating. As HDG is dipping the steel into liquid zinc, all the surfaces inside or outside, corners, even the narrow slits on surfaces, and spaces otherwise impossible to protect against corrosion are coated with zinc. And all corners and narrow slits that are coated thinner than the other surfaces with spray, paint or other dipping methods are coated evenly in HDG. 

Galvanization protects steel 3 ways. First, low speed of corrosion gives coating a long and estimatable life. Second is the kathodic protection. Scratches made by damages, drilling or cutting can be protected by corrosion products made by teh sinc. Third, when the damage is in a wider area, the zinc continues to protect steel as it is more electronegative than steel.