Quality Mesh Galvani

Corrosion protection

For those who want to buy a high quality netting, it is very important to know what the service life of the purchased mesh and its durability . To protect against corrosion, a high-quality chain-link mesh is woven from galvanized wire . (GOST 3282-74, or TU 14-4-1563-89). But today there is no real control over compliance with GOSTs and TUs, so many manufacturers of metal mesh frankly neglect these regulatory documents and produce Rabitsa according to their own quality criteria. Thus, the quality of the mesh depends on who the manufacturer is.

What turns the low price of the grid

Sometimes the chain-link rusts too quickly . Therefore, the question arises: why does a galvanized chain-link rust ? For example, in Ukraine, some enterprises in order to reduce the cost of galvanized wire have mastered the electrolytic method of galvanizing wire for the manufacture of woven mesh.
What does he give?
If during hot galvanizing the zinc layer on the surface of the wire is 70-90 g/m2 (the Chinese manage to make 40-50 g/m2), then by electrolytic method it is possible to obtain galvanized wire for mesh weaving with 10-g/m2 zinc . Naturally, such a thin layer of zinc on the chain-link will lead to the fact that after a year of use, this chain-link will begin to rust.

Other causes of corrosion of galvanized chain-link

The mesh can last for a long time, provided that it is not constantly in contact with moisture. What does it mean? Rain does not harm the galvanized chain-link, because the water flows off the surface and the surface dries quickly. But, when using a galvanized netting for fishing, it can rust within a few months.
Not durable galvanized coating and in an aggressive environment. For example, a grid that stands in a rural area can stand without rusting for 20-30 years, and the same galvanized chain-link quickly rusts on the salt sea coast, the coating is quickly corroded by fumes from traces of animal life, so this coating is short-lived in animal cages, on farms.
How to extend the service life of galvanized coating? It is necessary to purchase a galvanized chain-link from a specially galvanized wire, the density of zinc on which is about 230 g / m2. This will extend the use of your mesh in harsh environments for several years. It is better and cheaper to use polymer-coated galvanized chain-link for aggressive environments.

Unique photos

We managed to see the result of buying mesh from modern "economists" and we decided to observe what will happen with this chain-link for several years. And this is what we saw: it begins to rust in places where the greatest amount of moisture is present - where the turns of the spiral connect. Further, the corrosion process goes along the path of expanding the rust spot and, finally, the whole is covered with a loose layer of rust. After that, within a few years, this chain-link will completely rot.

The change in the state of the network with a small amount of zinc for 8 years

The worst thing is that during the year (warranty period) this mesh holds up perfectly, and the owner of the photographed mesh cannot legally demand a refund of wasted money for a poor-quality product, because it is impossible to prove in what conditions this mesh was used. So, for example, the mesh shown above could have come to this state when acid rain fell, it was stored nearby in leaky containers with pesticides or animal waste, or it was stored outdoors on rain-soaked ground for a long time before installation . After all, he counted on the fact that it would serve him for 20-25 years ... such a situation is now observed throughout Ukraine and in the countries of the former USSR.

How to buy a quality galvanized chain-link

In our opinion, the most high-quality mesh today is supplied by large mesh manufacturers Rabitsa , who strictly adhere to GOSTs and TUs. This is exactly the kind of mesh that our company supplies. In addition, you can always be guaranteed in a quality Rabitz mesh. If you buy it in a specialized company that values its reputation. Brands such as Metizy-94 supply mesh to the market today, which will last much more than 20-25 years. To illustrate the quality of the supplied chain-link, we periodically photograph the net, which we installed in 1999 in the town of Chortkiv in the estate of our partner PE Klimchuk.

This is how the chain-link looks like, which was delivered to Chortkiv in 1999 by PE Metizy-94

Galvanized Chain-link after 3 years	Galvanized Chain-link after 8 years	Galvanized Chain-link after 13 years