PPGI, PPGL, PPAL- Steel Coil

 COLOR COATED STEEL COIL - PPGI, PPGL, PPAL                                                                                   PROFESSINOAL TEAM                 ON-TIME DELICERY             ADEQUATE STOCK

       Color coated plate is also called coated plate, color steel plate, it is based on metal coil (cold rolled plate, hot galvanized plate, aluminum plate, high aluminum
       alloy plate, stainless steel plate, etc.) as the substrate, coated or laminated on the surface of various organic coatings or plastic films. Because it is a coil that
       completes the surface coating in a metallurgical plant, it can be directly processed into products by users, so it is also called pre-coated coil.
       Uses: industrial plant, gymnasium, airport/station, indoor partition, warehouse, elevator, metal curtain wall, etc.

• PPGl is pre-painted galvanized steel, also known as Pre-Coated Steel, Color Coated Steel, etc.
  Using Hot Dip Galvanized Steel Coil as the substrate. PPGl is made by first going through surface pretreatment, then coating one or more layers ofliquid coating by roll coating, and finally baking and cooling. The coatings used include polyester, silicon-modified polyester,high durability, corrosion resistance, and formability.
• PPGL steel is a durable, colorful and economical building material.lt is the abbreviation of pre coated galvanized steel. lt takes Hot Dip Galvalume Steel Coil as the base material. Then, the aluminum zinc coated steel plate is continuously painted in the form of coils.Because of its excellent heat resistance and corrosion resistance, it has become the preferred material for a wide range of building applications,especially roof and wall. 
• PPAL (Color Coated Aluminum Coil), common polyester color coated aluminum (color coated aluminum coil), widely used in aluminum honeycomb panel, aluminum ceiling,roof surface, scraps, its performance is very stable, not easy to be corroded, a new profile.

First, Material Properties

PPGI is a common cold-rolled steel plate as the base material, after surface treatment, and then with color coating or galvanized processing process of architectural decoration materials. Its main features include:
1. Strong anti-corrosion performance: PPGI is a galvanized steel plate, which has good anti-corrosion performance and can be used in various harsh environments;
2. Good weather resistance: the surface coating of PPGI uses polyester, silicon modified polyester, fluorocarbon and other materials, which can resist the influence of ultraviolet light and climate change, and is not easy to fade and aging;
3. Strong decoration: The surface color of PPGI is bright and diversified, which can meet different architectural styles and personalized needs.

Second, Construction Use

1. Convenient construction: PPGI is easy to install, lighter than traditional tile, stone, glass and other decorative materials, reducing the labor intensity of workers and improving construction efficiency;
2. good plasticity: PPGI can be cut, stamping, bending and other processing according to demand, can produce a variety of different forms of building components, with good plasticity;
3. Long service life: PPGI surface coating using imported materials, after anti-corrosion, anti-corrosion, anti-ultraviolet treatment, service life of more than 20 years.

Third, Environmental Sustainability

1. No harmful chemicals are used on the internal and external surfaces, and the test is qualified;
2. Recyclable reuse: the waste generated in the construction process can be recycled and reused, reducing waste and reducing environmental pollution;
3. Degradable: The surface coating of galvanized color plate can be degraded to reduce environmental pollution of the substrate.

Conclusion

In summary, galvanized color plate has the characteristics of anti-corrosion, weather resistance, good decoration, easy construction, long service life, and environmental sustainability, is an excellent building decoration material.

PPGI and PPGL are two different coating technologies, and there are some differences in application and performance.

PPGI is a technology in which GI is coated with a layer of color pigment on the surface of GI, which is suitable for lighter environmental conditions.   
PPGL is based on GL as the substrate, coating a layer of color pigment on the surface of GL technology, with better corrosion resistance, suitable for harsh environmental conditions.

The advantage of PPGI is its variety of colors, which can be adjusted as needed, and its lower price. However, PPGI color pigments can only provide limited corrosion resistance, in harsh environmental conditions, the color may fade, and do not provide good corrosion resistance.

The advantage of PPGL is that its aluminum zinc has good corrosion resistance and electrical conductivity, and can effectively resist acid, alkali, salt and other corrosion factors. PPGL's color pigments have better corrosion resistance and do not fade easily. However, PPGL's price is relatively high.

Therefore, when choosing PPGI and PPGL, it is necessary to consider the location of use, environmental conditions and customer needs. If you need to use in light environmental conditions, color requirements are high, and price sensitive, then PPGI is a good choice. However, if you need to use in harsh environmental conditions and need to provide good corrosion resistance, then PPGL is a better choice.

In the production process of PPGI and PPGL, there are also certain differences. The production process of PPGI is relatively simple, the process is not complicated, and the production cycle is short. The production process of PPGL is complicated, the process is cumbersome and the production cycle is long.

Finally, it should be noted that the value and cost performance of PPGI and PPGL are different, and customers need to weigh the pros and cons according to their needs when choosing to ensure that the most appropriate coating technology is selected.

In short, PPGI and PPGL are two different coating technologies that differ in application and performance. Which coating technology to use depends on the place of use, environmental conditions and customer needs.

The strength of the color steel plate depends on the substrate material and thickness, and the durability depends on the coating, surface coating and processing technology, and the coating has polyester coating (PE), fluorocarbon coating (PVDF), silicon modified coating (SMP), high weather resistant coating (HDP), acrylic acid coating, polyurethane coating (PU), plastisol coating (PVC) and so on. The coating structure has two coating and one drying, two coating and two drying, etc., and the maintenance-free service life can be 10-30 years according to the different environment and atmosphere.
 

1. Environmental factors of corrosion

Longitude and latitude, temperature, humidity, total radiation (UV intensity, sunshine duration), rainfall, pH, wind speed, wind direction, corrosive fallout (C1, SO2).

2. The influence of sunlight

Sunlight is an electromagnetic wave, according to the energy and frequency of the high and low divided into gamma rays, X-rays, ultraviolet, visible light, infrared, microwave and radio waves. Among them, the ultraviolet spectrum (UV) is a high-frequency ray, which has a greater destructive power than the low-energy spectrum, such as the skin spots we know are caused by the sun's ultraviolet rays. UV can also break the chemical bonds of a substance, causing it to break, depending on the wavelength of the UV and the strength of the chemical bonds of the substance. X-rays have a penetrating effect, and gamma rays can break chemical bonds and produce free charged ions, which are deadly to organic matter.

3. the influence of temperature and humidity

For metal coatings, high temperature and high humidity contribute to oxidation reaction (corrosion). When the color coated board is in high temperature environment for a long time, the paint molecular structure on the surface of the color coated board is easy to be damaged, which affects the service cycle. When the humidity is high, the surface of the plate is easy to condensation, and the trend of electrochemical corrosion is enhanced.

4. the impact of pH on corrosion performance

For metal coatings (zinc or aluminum), they are all amphoteric metals, and strong acids and bases can corrode them. However, different metal acid and alkali resistance has its own characteristics, galvanized plate alkaline resistance is slightly stronger, aluminum zinc acid resistance is slightly stronger.

5. The impact of rain

The corrosion resistance of rain to color coated panels depends on the structure of the building and the acidity of the rain. For buildings with large slopes (such as walls), rainwater has a self-cleaning function to prevent further corrosion, but if the injection molding slope is small (such as roofing), rainwater will be deposited on the surface for a long time, promoting the hydrolysis of the coating and water penetration. For the joints or cuts of the steel plate, the presence of water increases the possibility of electrochemical corrosion, and the orientation is also important, and the acid rain situation is more serious.

1. Excellent Corrosion Resistance 

 Due to the 55% of aluminum, the resistance to corrosion of PPGL is much better than PPGI’s, which can greatly prolong the service life.

 2. Great Heat Reflectivity 

 The good heat resistance can keep the buildings cool in the hot summer.

 3. Weather Resistant Excellent 

 Pre-painted galvalume steel can withstand harsh weather conditions such as extreme summers, winters, or rainfall.

 4. Good Processing Performance 

 The PPGL steel sheets from ZIDA Steel are easy to profess, such as shearing, profiling, blanking, etc.

 5. Beautiful Appearance 

 They look attractive and impressive with a pleasant surface finish and aesthetics.

Pre-painted Galvanized/Galvalume Steel are used in roof structure, surface sheet of balcony, frame of window, folding screen and electrical equipment.

 Pre-painted steel can be formed into almost any shape, and it has excellent resistance to weathering, superior longevity and texture options.