Wanzhi - Color Corrugated Steel Sheet

Usages of Color Corrugated Steel Sheet

Coated corrugated steel sheets are widely used in the construction industry, such as roof, wall cladding, windows and doors, ceiling, internal and external decoration, etc. In the past, it was mainly used in industrial and civil buildings, such as warehouses, garages. While now it is also very popular in large public buildings due to its various designs, such as airport terminals, railway stations, exhibition halls, gyms, theaters, as well as 2008 Olympic Stadium.

How to Choose Painted Corrugated Steel Sheets?

It is important to choose your own colored corrugated metal according to the intended uses, use environment, expected service life, etc. Let’s review the following aspects.

Substrate

The substrate directly affects the quality of pre-painted corrugated sheets. It is because that painting and profiling process have little impact on the mechanical properties of steel. As for Wanzhi Products, we mainly employ GI and Al-Zn coated steel (GL) as substrate. By comparison, PPGL corrugated sheet is more heat-corrosion resistant, which is more suitable for severe environments. While the affordable PPGI sheet is also durable enough for general applications.

Substrate Thickness

Commonly, the thickness for roof and wall is 0.4-1.6mm, and 0.1-1 mm for ceilings. While if being used as a bearing wall or silo, it should be with a thickness of 2-3 mm or above. Also, there are different designs and wave heights to choose from. But please note that it doesn’t mean the thicker the metal, the better the quality. You should choose upon your needs.

Coating

As shown in the table above, our coatings include polyester (PE), silicone modified polyester (SMP), high durability polyester (HDP), and polyvinylidene fluoride (PVDF). The hardness, flexibility, adhesion, and performance of different paints are different. You need to choose the coatings based on their adhesion, use environmental, service life, etc.

Coating Thickness

The color coating steel consists of base metal, zinc or Al-Zn coating, pre-treatment coating, primer, and finish coatings (top & back sides), which directly affects its corrosion resistance. So the thickness of coating should be confirmed according to the corrosion of use environment. Commonly, both sides are coated twice. For some special uses, such as home appliances, it may be painted three times. While if the back side is to be bonded, a single layer is recommended.

Besides that, the pre painted corrugated sheet price will be a great concern. But please do not rely on the price only. Instead, pay more attention to the quality. As one of the top coated corrugated steel sheet manufacturers in China, Wanzhi Group offers a factory direct sale price. More than that, we have rich experience and professional teams to provide you with a custom solution. Welcome to talk to us!

Various designs, rich colors, smooth surface, and decorative appearance, which are suitable for different architectural styles.

1. Light in weight (about 10kg/m2) but high strength (yield strength: 250~550MPa). So it is easy to transport, install, and safe to use. According to data, using coloured corrugated sheets will reduce the construction period by 40%.
2. Good heat and corrosion resistance, which can be used for more than 15 years under normal conditions.
3. Great formability so that you can use the coated corrugated steel sheets in many areas.
4. Environment-friendly building material, which can be recycled.