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Why choosing the wrong color will make Prepainted Galvanized Steel Coil less useful

The durability of the coating is the performance of the color steel coil during use, which is usually measured by the aesthetic life and the first overhaul life.
1. Beautiful life
The time interval from the completion of the manufacture of Prepainted Galvanized Steel Coil to the occurrence of a certain degree of discoloration and chalking of the surface coating, which affects the original aesthetic effect of the coating.

quality Prepainted Galvanized Steel Coil


2. Coating thickness
Porous tissue coating. Microscopically, the coating is a porous structure, and water and corrosive media (chloride ions, etc.) in the air will invade through the weak part of the coating, causing corrosion under the film, and then the coating will foam and peel off.
coating color
From the technical point of view, the choice of pigments for light-colored paints is large, and inorganic paints with superior durability (such as titanium dioxide, etc.) can be selected, and the heat-reflecting ability of the paint is strong (the reflection coefficient is twice that of the dark paint). Summer paint The temperature itself is relatively low, which is beneficial to prolong the life of the coating. In addition, even if the coating is discolored or chalked, the contrast between the light-colored coating and the original color after the change is small, and the effect on the appearance is not large.

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