What is Self Cleaning Prepainted Galvanized Steel Sheet?

What is Self Cleaning Prepainted Galvanized Steel Sheet?

The appearance of self cleaning prepainted steel sheet is easily affected by weather, causing surface dust. Due to its large distance, cleaning and maintenance are very difficult. Many companies have to hire professional cleaning personnel for high-altitude cleaning, which is not only expensive, but also brings great safety hazards to high-altitude operations.

The self cleaning prepainted steel board perfectly solves the two problems mentioned above: once it rains, it will self-clean once.

Self-cleaning prepainted steel plate is a new type of color coated steel plate for outdoor construction. It is a color-coated steel plate with self-cleaning function specially developed for construction materials in polluted areas. In addition to high decoration and weather resistance, it also has a special self-cleaning function. Factory buildings made of this material do not require manual cleaning and maintenance, and can maintain the high decorative properties of roof and wall color-coated panels in industrial and urban areas with poor air quality only by the scouring of rainwater.

Principle of self cleaning prepainted steel board:

Self-cleaning color-coated boards consist of substrates, coatings, chemical conversion layers, primers and topcoats. 

The hydrophilic additive is enriched on the surface of the color-coated board, and a dense film structure is formed on the topcoat to prevent pollution.

This photo shows hydrophilic additives, it is enriched on the surface of the color-coated board, and a dense film structure is formed on the topcoat to prevent pollution.

Advantage of self cleaning prepainted steel sheet:

1. Anti-pollution: There is a layer of cross-linked and dense paint film on the surface, which can effectively resist the penetration of pollutants into the paint film, thereby protecting the color board.

2. Good hydrophilicity: The surface of the self-cleaning color-coated board has an excellent hydrophilic surface, which can ensure the full development of rainwater and remove the pollutants from the surface.

3. High decorative and outdoor durability

4. Special "hydrophilic + anti-fouling" topcoat structure design to achieve self-cleaning.

   A variety of topcoat combinations to meet different application requirements.

   
   

5. The combination of medium and high strength + different zinc layers can meet various design requirements.

Features of self cleaning prepainted steel sheet:

Using special coatings, the coating products are rich in hydrophilicity, the surface of the coating is dense, and it can resist the penetration of pollutants into the paint film. The rain wash has the function of self-cleaning, which can reduce the cost of manual cleaning and maintenance in the later period. It also has anti-pollution and anti-ultraviolet functions.

This photo shows self-cleaning pre-painted galvanized steel coil, the surface looks no different with ordinary PPGI coils, but the topcoat is totally different.

We also supply self-cleaning pre-painted galvalume steel coil.

Please conact us for free quotation and services!