Application of  zinc dust in Zinc Rich paints

One of the most important applications of zinc is in zinc-rich paints. Paints that contain large amounts of zinc particles or a combination of zinc dust and organic or non-organic adhesives are called zinc-rich paints. These paints have been in use for over a century, and one of the main reasons for the popularity of zinc-rich paints is their cathodic protection.

Zinc Rich paints are used as a top coverage on steel or other metal surfaces in difficult environmental conditions and are at risk of continuous corrosion.

Zinc dust is one of the most important elements that controls decay through the galvanizing process. Zinc prevents metal decay. The main application of Zinc Rich paint is to protect metal surfaces against decay. Zinc dust combined in these paints provides cathodic protection.

Zinc-rich paints and similar coverage are usually used with the addition of a putty, which is used as a secondary coverage to protect the surfaces against rust.

Zinc Rich color features

Zinc rich contains large amounts of zinc dust or zinc powder combined with organic or non-organic adhesives. Zinc-rich paints have similar properties to heating galvanized coverage. These paints can be combined with the corrosion inhibiting properties of zinc metal by increasing the percentage of zinc in the dry film.

Micronized zinc dust in color is combined with organic strips. These connectors allow zinc particles to come in contact with each other, so zinc dust can provide cathodic protection.

Zinc-rich paints are a good way to repair damaged galvanized coverage. Paints containing this micronized dust that contain at least 65% zinc are in this specification. These paints are used in adhesion due to their convenient and easy adhesion and are widely used to repair damaged galvanized coverage.

How is zinc dust produced?

Micron micro particles of zinc metal with a purity of over 99% and form a spherical, zinc dust. Since this product is produced from raw materials with the highest degree of purity and under controlled conditions, it contains zinc metal with very uniform grading.

Zinc dust production methods

In general, zinc dust is produced in two common ways, which are discussed below.

Production of zinc powder by distillation method: In order to convert zinc into steam, many types of jars are used. These jars include electro thermal jars, horizontal jars and New Jersey jars. Zinc is converted to steam from high-grade zinc ingots or scraps and slag from galvanizing workshop.

Depending on the steam condition, its density, and how the process is controlled, the size of the zinc may vary. In this method, energy is consumed about 1000 kilowatt hours per ton of dust. In addition, about 15 cubic meters of gas is used for melting and preheating per ton of zinc dust.

Production of zinc powder by atomization method: Converting liquids to powder is called atomization. In this method, zinc must first be molten and then the fine droplets of molten zinc are combined with a horizontal air stream. At this stage, air pressure leads to atomization of zinc droplets. In the final stage, the zinc dust produced by the bag filters is collected.

Of course, according to experts, this method leads to the production of zinc powder, and the distillation method is the main method of producing zinc dust. Because in the atomization method, the product produced is larger than the product of the previous method.

The difference between the production method of zinc dust and zinc powder

Zinc powder is produced in irregular geometric shapes, but zinc dust is completely spherical and has a higher specific surface area than zinc powder. High specific surface area increases zinc oxide and decreases metal zinc content. A thin layer of oxide forms on the metal, which reduces the content of the metal and needs to be felt again to solve this problem. In general, a high percentage of zinc oxide causes the product to return to the smelter.

What is zinc dust? And what applications does it have in the industry?

Zinc dust is one of the products that has many applications in industry. Zinc dust is a product that is often getting it wrong with zinc powder and these two products have different uses and functions. The reason for the difference between the two products is the difference in particle size and grain size.  zinc dust particles are smaller in size, averaging 2 to 9 microns, and zinc powder is larger than 9 microns.

Application of zinc dust in industry

Zinc dust has many uses and it is very important that you should know and use it properly. zinc dust plays an important role in the industry. Different producers use zinc phosphide with other compounds to produce different chemicals. Most applications of zinc dust are those in which zinc powder is also used.

Zinc is used to prevent rusting of other metals such as iron. One of the best ways to protect your metal from rust is to use zinc dust galvanizing.

One of the important roles of zinc in the chemical industry is to produce different chemicals that manufacturers use zinc phosphide with various other compounds.

Other applications

In addition to the above, zinc dust can be used as a precipitate. Zinc can be used to purify various solutions containing metals such as cadmium, copper, silver and gold.

In order to paint structures such as sea tools, roofs and platforms, zinc dust is a suitable cover. Zinc-based paints are also used to paint bridges, Because this coverage is insoluble in water.

Specialists create a protective coverage on the steel by performing a mechanical galvanizing process. To do this, first clean the steel and then place it in a container containing zinc dust.

Zinc paint is very durable and galvanizing many clamps and anchors is done mechanically. To maintain the smoothness of the surface, the galvanizing process is performed to protect the zinc. Micronized zinc dust is also used in the production of zinc-rich paints.