Varnishing and shot blasting


Preparation and protection

Varnishing is carried out in several stages and layers, in controlled conditions according to modern technology with tools and materials from proven manufacturers.

Dundo lakiranje

About the technological process of varnishing and shot blasting

Surface preparation – shot blasting

Cleaning the metal surface before applying the protective coating, it is necessary to do it carefully, in order to clean the metal surface from grease, corrosion residues and old coating.

Abrasive blast cleaning is the best method if you need to remove layers of large thickness of corrosion products, but also old coatings, paints, etc. Shot blasting is also one of the advanced deformation forming processes. It is mostly used for cleaning metal surfaces, mechanical cleaning of wires, preparation of painting surfaces and to increase fatigue resistance in springs and gears.

Anticorrosive protection with coatings – varnishing

The coatings separate the construction material from the aggressive action of the environment. Metallic and non-metallic protective coatings and coatings are the most common form of corrosion protection. The primary task of the coating is corrosion protection, while the secondary task of the coating is protection against mechanical wear, achieving an aesthetic impression, achieving certain physical properties of the surface, etc.

The protective effect of the coating depends on its type, thickness, degree of compactness and adhesion strength. For quality application of coatings and coatings, it is necessary to prepare the surface well, which means that it is necessary to remove impurities, grease, scale and corrosion products. They are divided into organic (non-metallic) and inorganic (metallic or non-metallic).

Metal coatings are applied by physical or chemical processes of metallization or plating, depending on whether only physical changes take place during coating or the coatings are the product of chemical reactions. These include galvanization or electroplating, metallization by spraying, hot immersion in molten metal, plating, natalization, surfacing, etc.

Non-metallic inorganic coatings are applied by physical or chemical processes.

  • Physically, such coatings are usually applied externally, i.e. without the participation of a substrate.
  • Chemically, coatings are most often formed by a process in which the surface of the substrate participates. The most important ones include enameling, anodizing, browning and phosphate coatings.

Non-metallic organic coatings are coatings obtained by applying organic coatings (painting and varnishing), conventional lubrication, plasticizing, rubberizing and bituminizing.

We can protect all our products by painting in our own paint shop, and by plasticizing and galvanizing in subcontractors.

Dundo lakiranje
Dundo lakiranje


Shot blasting chamber

  • Useful length: 10 m
  • Useful width: 5 m
  • Useful height: 5 m
  • Abrasive: steel grit G40-G50

Varnishing chamber – SECCO

  • Eco Air
  • Useful length: 10 m
  • Useful width: 5 m
  • Useful height: 5 m
  • Hot air generator 232 Kw (power)
  • Chamber operating temperatures:
    • painting +20 °C
    • drying +60°C (adjustable)