Advantages Of Hot Dip Galvanizing

1. The entire steel surface is protected and zinc melt can be easily coated evenly, whether in the recessed pipe fittings or in any other corner where the coating is difficult to access.

2. The hardness value of galvanized layer is greater than that of steel. The Eta layer of the top layer only has a hardness of 70 DPN, so it is vulnerable to collision and concave, but the hardness of the lower Zeta layer and Delta layer is 179 and 211 DPN, respectively, which is higher than the hardness of 159 DPN of iron, so its impact resistance and wear resistance are quite good.

3. In the corner area, the zinc layer is often thicker than in other places and has good toughness and abrasion resistance. And other coatings in this corner, is often the thinnest and most difficult to construct, the most vulnerable to injury harm, so often need to be maintained.

4. Even if due to great mechanical damage or other reasons. Cause a small part of the zinc layer to fall off, exposing the iron base, at this time, the surrounding zinc layer will play the function of sacrificing the anode, to protect the steel here, so that it is not eroded. But another coating is just the opposite, rust will be generated immediately, and quickly spread to the coating below, causing the coating to peel off.

5. The depletion of the zinc layer in the atmosphere is very slow, about 1/17 to 1/18 of the corrosion rate of steel, and can be predicted. It lasts longer than any other coating.

6. The coating life depends mainly on the coating thickness in a particular environment. And the coating thickness is determined by the thickness of the steel, that is, the thicker the steel is easy to get thicker coating, so the same steel structure in the thick steel part must also get a thicker coating, in order to ensure a longer life.

7. Due to aesthetic, artistic, or use in a specific severely corrosive environment, the galvanizing layer can be reapplied with the above paint processing duplex system. As long as the paint system is correctly selected and easy to construct, its anticorrosive effect is 1.5~2.5 times better than the combined life of paint alone and hot dip zinc.

8. With a zinc layer to protect steel, in addition to the hot dip galvanizing method, there are several other methods, generally the most widely used, corrosion prevention effect is the best and the best economic benefit, for the hot dip galvanizing method.