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How to choose PPGI Coil color

Apr 26, 2024

PPGI Coils are available in a wide variety of colors, how to choose the right color for you among the many PPGI Coils ? Avoid its color difference, let's come together to understand it.


Color coated
plate coating color selection:

the choice of color is mainly to consider the match with the surrounding environment and the user's hobby, but from the point of view of the use of technology, light-colored coatings of pigments to choose a large margin of choice, you can choose superior durability of the inorganic pigments (such as titanium dioxide, etc.), and coatings with a strong thermal reflectivity (reflectivity coefficient of the darker coatings up to double the summer coatings) the temperature of the coatings themselves are relatively low, which is beneficial to the extension of the life of the coatings This is beneficial to the coating life extension.



In addition,

I remind even if the color coated coil coating discoloration or chalking, light color coating film changes with the original color of the contrast is small, the impact on the appearance is not big. The dark color (especially the more bright colors) using organic colors mostly, easy to fade when exposed to ultraviolet radiation, short of 3 months to change color. For color coated steel, usually coating and steel plate thermal expansion rate is different, especially the metal substrate and organic coating of the coefficient of linear expansion of the difference is large, when the ambient temperature changes, the substrate and the coating interface will be combined with the expansion or contraction of the stress, if not properly release the coating cracking will occur.


Here to illustrate two points of the current domestic market selection of misunderstanding:

1.a large number of white primers currently exist in China.

The purpose of using white primer is that the thickness of the topcoat can be reduced, because normal corrosion-resistant primer for construction is yellowish-green in color (hence the strontium chromate pigment), and there must be a sufficient thickness of topcoat.
2.the same project of color coated steel plate for construction project using different vendors,

different batches of color coated steel plate, in the construction of seemingly the same color, but after a few years of sunlight, different coatings of different vendors of different color change trend is different, resulting in a serious color difference, there are too many examples of this. Even if the products of the same supplier, it is strongly recommended to order for the same project at one time, because it is possible to use the products of different coating suppliers for different batches, which increases the possibility of color difference.


Author: Bella Niu

 

The Introduction Of Author

I am a very very enthusiastic person and I am very very glad to help you if I have any chance. If you have GI, PPGI, GL, PPGL , Roofingsheet steel industry confusion, or If you have steel internet marketing questions, or 2024 a direction, or you have ideas to make investments in 2024, or you are making adjustments, you're not quite clear, welcome to come to Li Cheung Steel Bella for advice as soon as possible.
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