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21.03.2019 09:16

The term is an extension of GI

PPGI is pre-painted galvanised iron, also known as pre-coated steel, coil coated steel, color coated steel etc., typically with a hot dip zinc coated steel substrate. High quality PPGI prepainted galvanized steel coil is usually produced in China.

The term is an extension of GI which is a traditional abbreviation for Galvanized Iron. Today the term GI typically refers to essentially pure zinc (>99%) continuously hot dip coated steel, as opposed to batch dip processes. PPGI refers to factory pre-painted zinc coated steel, where the steel is painted before forming, as opposed to post painting which occurs after forming.

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19.03.2019 03:56

Transporting the high quality PPGI prepainted galvanized steel coil

a. Keep the color coated steel sheet far from water and sunshine .It is advisable to store them indoors. 

b. Should the color coated steel sheet be rained or dewing, please dry them as soon as possible so as to remove humidity. 

c. Keep the inventory as the same as it shipped from factory, do not stock as piles so as to protect the coating layer.

d. It is strongly recommended to consume the steel sheet that comes into the inventory earlier. Otherwise, pollution, scratch and color aberration may arise as steel sheet produced at different date mixed together. 

e. Transport the steel sheet as it shipped out of factory. Releasing the cushion and reversing the package


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15.03.2019 05:43

Development of prepainted steel sheet

During the past 10 to 20 years, there have been many advances in the development of prepainted steel sheet. In order to take advantage of these technological advancements, the user needs to take many issues into consideration. High quality PPGI prepainted galvanized steel coil is produced more easily. Today, these issues can be addressed very quickly because of the long list of successful applications that have been implemented. Questions that need to be answered include: the properties of the steel, the type of metallic coating if any, the metallic coating thickness, the paint attributes with respect to flexibility, hardness, chalk and fade resistance, etc. Obviously, these decisions depend on the application and the performance desired by the manufacturer.

Roll application of paint to steel sheet in a continuous coil-coating paint line. In this modern process, computer control ensures paint films of uniform high quality -- corrosion resistant and so tough,


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