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    Home > Coatings News > Paints and Coatings Market > Coating technology: color matching of architectural coatings

    Coating technology: color matching of architectural coatings

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tip: selection of color paste: the color mixing of building emulsion paint generally adopts the method of producing a basic paint with titanium white and a basic paint without titanium white, then mixing the two according to different proportions and adjusting the color paste Therefore, the choice of emulsion paint paste is very important Generally speaking, in the color matching of architectural coatings, organic color pastes usually produce bright colors, while inorganic color pastes produce softer colors Titanium white provides whiteness, while black paste can darken the coatings and produce deeper grayscale and color The weatherability of inorganic color paste is better than that of organic color paste Internal color paste: because of the indoor environment Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Paint Home News: selection of color paste: the color mixing of building latex paint generally adopts the method of producing a titanium containing base paint and a titanium free base paint, and then mixing the two in different proportions, and adjusting the color paste Therefore, the choice of emulsion paint paste is very important Generally speaking, in the color matching of architectural coatings, organic color pastes usually produce bright colors, while inorganic color pastes produce softer colors Titanium white provides whiteness, while black paste can darken the coatings and produce deeper grayscale and color The weatherability of inorganic color paste is better than that of organic color paste Color paste for internal use: because the indoor environment is mild, without wind, sun, rain, etc., the color retention requirements for color paste are small Color paste for external use: the color paste with good weather resistance shall be selected for the color paste for external use On the premise of ensuring the color, it is recommended to use organic and inorganic color paste together to ensure the color durability of the paint If extremely bright colors are required, only high-grade organic pigments that are resistant to sunlight can be used At the same time, many architectural coatings are used in the alkaline concrete mortar surface, so the alkali resistance of the color paste is also very important The fineness, stability, colouring strength and the compatibility with the base material of the color paste are also factors to be considered In addition, the color paste without APEO (ethoxyalkylphenol) should be selected as much as possible Many properties of color paste, such as light resistance and weather resistance, largely depend on the performance of the coating itself, surface treatment and construction conditions of the coating Therefore, before selecting a new color paste, aging test is required to obtain reliable data Precautions for color matching of coatings: before color matching, the basic performance and quality of the pigments used shall be understood, and samples shall be provided according to the required color paint samples, to find out the color range, what color is the main color, what color is the secondary color, and what proportion of the several color pastes is needed, so as to know well and make deployment (1) in the case of full mixing, color matching should be slowly added to the base material, stirring evenly, and observing the color changes at any time For example, if the color is deep and bright, you can first use inorganic pigment paste to adjust the depth, and then use organic pigment paste to adjust the brightness, which can reduce the cost (2) When two or more kinds of color pastes are used, 60% - 70% of the main color pastes shall be added first, and then the secondary color pastes shall be added If the amount of the two pastes is similar, they shall be added alternately, and then more or less shall be added each time, so as to make them gradually close to the sample or sample paint Especially when the color pastes with strong coloring strength are used, they shall be added slowly and indirectly, and excessive shall be remembered (3) On the premise of ensuring that the color meets the requirements, the variety of color pastes used shall be as few as possible, generally controlled at two or three kinds; because the more kinds of color pastes are added, the more light is absorbed, and after the coating becomes color, the lightness decreases and the color darkens, at the same time, the work of color mixing is added (4) When matching colors, a part of base material should be reserved first, which is good for timely remedy and adjustment when matching colors (5) In the process of color matching, we must also pay attention to the color difference of the color paint when it is dry and wet The color is lighter when it is wet, and the color will turn dark after it is dry It is the opposite of the phenomenon of the watercolor paint used in the art when it is wet and lighter after it is dry Therefore, in the process of color matching, the color of the wet paint is slightly lighter than that of the paint on the sample At the same time, complementary tone paints are not used as much as possible Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,
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