The difference between PPGI and PPGL tables

The difference between PPGI and PPGL sheets is that PPGI and PPGL sheets are two different types of color coated steel plates, widely used in various industries, such as advertising, construction, transportation, household appliances, etc. They are very similar. But there are still some differences. So, what is the difference between PPGI and PPGL tables? Continue reading for detailed information. The difference between PPGI and PPGL sheets 1 Different substrates PPGI is the abbreviation for pre coated Galvanized steel, while PPGL is the abbreviation for pre coated Galvanium steel. As the name suggests, PPGI uses galvanized sheet (with a layer of zinc coating) as the base material. PPGL uses aluminum zinc plated sheet as the substrate, with 55% aluminum, 43.3% zinc, and 1.6% silicon plating. This is the main difference between PPGI and PPGL, which will further affect their characteristics and applications. Galvalume Steel Coil 2 As mentioned earlier, zinc coating and aluminum zinc coating are both used to protect metals from rust and extend their service life. For GI sheets, when the zinc layer is completely corroded, it will damage the base material. Generally speaking, galvanized sheet can be used for 10 to 15 years. Aluminum and zinc alloys form microscopic particle regions. The zinc rich phase will preferentially corrode, while the aluminum rich phase will corrode very slowly. So Al Zn coating is more corrosion-resistant than galvanized steel plate. According to data, the service life of PPGL is three times that of PPGI. Here are some pictures for you. 3. Under the same coating thickness, the weight difference of Al Zn coating is lighter than that of zinc coating. This is because the specific gravity of aluminum is lower than that of zinc. That is to say, under the same weight, the Al Zn coating can cover 3% more space than the GI plate. Project thickness (mm) Weight (g/m 2) GI 0.6 200 GL 0.6 350 4 Appearance difference: The surface of PPGL sheets is smoother than that of PPGI sheets. This is because aluminum has better adhesion than zinc. For the same reason, PPGL sheets can be directly painted without the need for pre-treatment. However, for galvanized sheets, pre-treatment is required. 5. The heat resistance of PPGL sheets with different characteristics is better than that of PPGI sheets. PPGL sheets can withstand a temperature of 315 ℃. In addition, PPGL sheets have better corrosion resistance than PPGI sheets. This is because the dense layer made of aluminum can prevent further corrosion of the base material. GI and GL 6. PPGI and PPGL sheets are widely used for wall panels and roofs for different applications. In contrast, PPGL has better corrosion resistance, which means it is more suitable for harsh outdoor environments. In addition, due to its good heat resistance and surface conductivity, it is widely used in chimney tubes, ovens, and lampshades. However, PPGL has less protection for cutting edges. Therefore, you can use anti rust paint or zinc rich paint on the cutting edge. Edge cutting protection geography