10F, Building B, Erqi Center, Erqi District,
Zhengzhou City, Henan Province, China
Good news! Cambodian customers purchased 28 tons of PPGL(pre-painted galvalume) coils from Wanzhi Steel. After a week of production and packaging, the PPGL steel coils has been shipped to Cambodia on June 21, 2023.
|Top: 20mm, Back: 10mm
|June 14th, 2023
|June 21th, 2023
Pre-painted galvalume steel using galvalume steel sheets as the substrate after surface degreasing, phosphating, complex acid treatment, coating with organic paint, and baking. Galvalume is composed of 55% aluminum, 43.4% zinc, and 1.6% silicon solidified at 600℃, and its entire structure is composed of aluminum, iron, silicon, and zinc, forming a dense quadruple junction crystal of an alloy. Our galvalume steel coils have strong corrosion resistance, which is 3 times that of pure galvanized steel. The surface of aluminized zinc has beautiful zinc flowers, and the surface of the material is formed by the metal elements zinc and aluminum. If the zinc is worn after a long time of use, the aluminum forms a dense layer of alumina, preventing the corrosion resistance substances from further corroding the interior, so that the material has a longer service life.
1.Corrosion resistance: pre-painted galvalumcoilshave strong corrosion resistance, normal service life of up to 25 years. The corrosion resistance of pre-painted coils comes from the maintenance function of the obstruction layer of aluminum and the dedicated maintenance function of zinc. When zinc is used for dedicated maintenance in cutting edges, scratches and coating scrapes, aluminum forms an insoluble oxide layer, showing barrier maintenance function.
2. Heat resistance: Color coated aluminum zinc coil has a high degree of thermal reflectivity, aluminum zinc coil itself is also very good heat resistance, can be used for up to 315 degrees of high temperature environment.
3. Machinability: Color coated galvalume steel coils haveoutstanding processing function, can be pressed, cut, welding, etc., the coating has good adhesion and impact resistance.
4. Electrical conductivity: the surface of the pre-painted galvalume steel coilsis treated with special wax, which can meet the needs of electromagnetic shielding.
Color-coated galvanized and color-coated galvalume are two different coating technologies, and there are some differences in application and performance. Pre-painted galvanized is a technology of coating a layer of color pigment on the surface of zinc as a substrate, which is suitable for lighter environmental conditions. The color-coating galvalume is based on aluminum zinc as a substrate, on the surface of aluminum zinc coated with a layer of color pigment technology, has better corrosion resistance, suitable for harsh environmental conditions.
The advantage of color coated galvanized steel is its color diversity, which can be adjusted according to your needs, and the price is lower. However, color-coated galvanized color pigments can only provide limited corrosion resistance, in harsh environmental conditions, the color may fade.
The advantage of pre-painted galvalume steel is that its aluminum zinc has good corrosion resistance and electrical conductivity, and can effectively resist the attack of acid, alkali, salt, and other corrosion factors. The color pigment coated with aluminum-zinc has better corrosion resistance and is not easy to fade. However, the price of color-coated galvalume steel is relatively high.
Therefore, the choice of pre-painted galvanized steel and pre-painted galvalume steel, needs to be considered according to the use of the site, environmental conditions, and your needs. If you need to use it under slight environmental conditions, high color requirements, and price sensitivity, then pre-painted galvanized steel is a good choice. However, if you need to use it in harsh environmental conditions and need to provide good corrosion resistance, then color-coated galvalume steel is a better choice for you. Finally, it should be noted that the value and cost performance of color-coated galvanized steel and color-coated galvalume steel is different, and you need to weigh the pros and cons according to your needs when choosing to ensure that the most appropriate coating technology is selected.
In the steel industry, Wanzhi Group has the industry leading level. We have our own factory, using mechanical automation production, production efficiency is high. Wanzhi Steel has two production lines for coating and printing, 10-40um for coating film and 5-20um for back paint. The annual output of the two production lines is 200,000 tons. In addition, we have a sales team of 60 people who are at your service 24 hours a day. Our product quotation is based on the product specifications you need, Wanzhi Steel can provide customers with the most favorable price. You can also visit our factory at any time and our sales manager will introduce our products to you in detail. Any questions, please free to contact us.