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2024
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03
The color retention performance must be able to withstand long-term natural tests
In addition to maintaining the wall surface, exterior wall coatings mainly focus on the effect of the paint, that is, decoration. Decoration cannot do without color, so the persistence of color represents the persistence of decoration. There are many correlations between color retention and weather resistance, but they are not entirely one of them - sharing. Therefore, exterior wall coatings that are exposed to the natural environment for a long time,
In addition to maintaining the wall surface, exterior wall coatings mainly focus on the effect of the paint, that is, decoration. Decoration cannot do without color, so the persistence of color represents the persistence of decoration. There are many correlations between color retention and weather resistance, but they are not entirely one of them - sharing. Therefore, exterior wall coatings that are exposed to the natural environment for a long time,
The inorganic coating franchise manufacturer said that inorganic coatings have withstood wind, sun, and rain, and their color retention performance must be able to withstand long-term natural tests. For exterior wall coatings that do not shed powder or change color within a controllable time, it can be said that their color retention performance is good. Organic pigments for exterior wall coatings: composed of monomers with the assistance of external energy, which can also differentiate and change color under the action of light energy. (Pay special attention to colors such as bright red, purple, orange, and bright yellow)
Inorganic pigments used for exterior wall coatings: iron series, cadmium series, chromium series, carbon black. Carbon black is a single carbon element with stable chemical properties and is not easily reactive with other substances. The other four are oxides, and after ionization, the sub terms are connected together. Alkali resistance of exterior wall paint pigments: Inorganic pigments usually have better alkali resistance, while organic pigments mostly have poorer alkali resistance.
The pigment content in exterior wall coatings: The higher the pigment content in the coating, the better the color retention. Soft colors are more prone to fading. The use environment of exterior wall coatings, especially acidic (acid rain) environments, can cause most inorganic colorants to decompose and fade. Application control of exterior wall coatings: mainly due to excessive dilution causing changes in the coating structure.
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