What is the function of the auxiliary agent used in the color-coated board?
Time:
2023-05-19
I believe that many users know about color-coated board products. With the wide application of color-coated board products, more and more users begin to pay attention to the composition and characteristics of the products. Next, I believe that through our introduction, you will have more understanding of our products.
I believe that many users know about color-coated board products. With the wide application of color-coated board products, more and more users begin to pay attention to the composition and characteristics of the products. Next, I believe that through our introduction, you will have more understanding of our products.
The additives used in color coated panels are small amounts of additives added to improve coating performance. The amount of additives in the coating is small, but the effect is remarkable. For example, some can improve the performance of coatings and films, some can shorten drying time, and some can prevent the film from becoming ill. There are many types of additives, including desiccants, curing agents, leveling agents, defoamers, matting agents, stabilizers, etc.
Almost most liquid paints are composed of some raw materials, the most important of which is resin, which is indispensable for any paint. It can be said that resin (sometimes with solvents and additives) is a transparent paint, and then pigments are added to form various colors of paint.
The process flow of color-coated steel plate is as follows: Color-coated steel plate is a product made of cold-rolled steel plate and galvanized steel plate as the base material, through surface pretreatment (degreasing, cleaning, chemical conversion), continuous coating (roll coating method), baking and cooling. The common process flow of the double-coated double-drying continuous color coating unit is as follows: uncoiling → pretreatment → coating → baking → post-processing → coiling.
The color-coated board is light in weight, beautiful in appearance, good in anti-corrosion performance, and can be processed directly. It provides new raw materials for the construction industry, shipbuilding industry, automobile manufacturing industry, furniture industry and electrical industry, and has good effects of replacing wood with steel, efficient construction, energy saving and pollution prevention.
The color-coated sheet professionally produced by color-coated sheet manufacturers is a color-coated sheet based on galvanized steel sheet. In addition to zinc protection, the organic coating on the zinc layer plays a covering and isolation role, which can effectively prevent the steel sheet from rusting and has a longer service life than galvanized steel sheet. According to reports, the service life of color-coated steel sheet is 50% longer than that of galvanized steel sheet. The service life of color-coated sheet with the same amount of galvanizing, the same coating and the same coating thickness will vary greatly in different regions and parts.
Buildings or plants made of color-coated panels usually have a long service life when rain initializes. Otherwise, their use will be affected by the action of gas, salt and dust. Therefore, in the design, the greater the inclination of the roof, the less likely it is to accumulate dust and other dirt, and the longer the service life; areas or parts that are not frequently washed by rain should be washed with water regularly.
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