Technology

Surface treatment and coating technology

1. Main equipment

The coating production line owned by the company is provided by the world’s third ranked coating professional company, which integrates German pre-treatment technology and American painting National coating technology, Italian heat exchange technology. The world’s leading level of coating equipment and technology ensures the coating quality of products at zero distance from the world.

2. Phosphating film process (zinc based phosphating)
The use of the unique zinc based phosphating technology in the fence coating process is the core technology of the coating process: maximizing the zinc based phosphating film
Enhance the adhesion between polyester coating and substrate to ensure exceptional anti-corrosion quality

Scanning Electron Microscope (SEM) image of the appearance of the membrane

3. Schematic Table of Anti corrosion Texture of Coatings

Coating process

Outer coating

Inner coating

Base material

High end PE coating process in the United States (with strong UV resistance and color stability)

German pre-treatment process and zinc rich phosphating layer (corrosion-resistant+increases substrate and coating adhesion)

High strength hot-dip galvanized steel wire, double-sided hot-dip galvanized high-quality all steel column

4.Table of Technical Parameters for Surface Coating

 
Test project Test method Actual measured values of surface coating
Film thickness: ISO2360 ≥100μ
Grid adhesion: ISO2490 0
Impact test 20 inch pounds: ASTMD2794 No deep or substrate cracks
Weatherability: EN20105-A02 ≥ 4
Photoaging: ENISO105-B02 ≥ 7
Resistant to humidity for 1000 hours ISO6270-1 Maximum foaming 1mm
Salt spray resistance for 1000 hours ISO9227 Maximum subsurface corrosion 1mm