The main purpose of renovation and coating of color steel tile is to avoid the expansion of rust scope and aggravation of corrosion of color steel tile roof, so as to greatly shorten its service life. Renovation and painting is an effective anti-corrosion measure, which can greatly improve the service life of color steel tiles and reduce the number of replacement of metal roofs, so as to reduce the cost of enterprises. For general standard construction, primer shall be sprayed.

其作用是由彩钢瓦翻新的防腐需求决定的，需求也决定了专业的彩钢瓦专用漆底漆必须具备的许多优良特性。

Its function is determined by the anti-corrosion demand of color steel tile renovation, and the demand also determines many excellent characteristics that professional color steel tile special paint primer must have.

为了阻止彩钢瓦的锈蚀，必须将它与空气隔绝，底漆发挥了这样的作用。因此这就决定了专业彩钢瓦翻新底漆必须具有良好的附着力，只有这样才能确保使金属屋面很好的与空气隔绝。为了更加有效的防腐，直接与金属屋面表面接触的底漆还必须具备良好的防腐性、防锈性、耐油性、耐化学性和耐水性等特点，它是直接涂装在经过表面处理的本身部件表面上的道涂料，它是整个涂层的开始部分。因此如果时彩钢瓦翻新喷涂底漆没有做的话，仅喷涂面漆，其防锈性能会比较低，使用时间不会很长，什么“质保8年、10年”都是空谈。

In order to prevent the corrosion of color steel tile, it must be isolated from the air. The primer plays such a role. Therefore, this determines that the professional color steel tile renovation primer must have good adhesion. Only in this way can we ensure that the metal roof is well isolated from the air. In order to prevent corrosion more effectively, the primer in direct contact with the metal roof surface must also have good corrosion resistance, rust resistance, oil resistance, chemical resistance and water resistance. It is the first coating directly coated on the surface of its own parts after surface treatment, and it is the beginning of the whole coating. Therefore, if the color steel tile is renovated and sprayed with primer and only sprayed with finish paint, its rust prevention performance will be relatively low and the service time will not be very long. What "warranty of 8 years and 10 years" is empty talk.

彩钢瓦翻新底漆主要是连接金属屋面基材与面漆的中间层，所以底漆的兼容性显得至关重要了，它关系到面漆的牢度问题。这里说的兼容性是指各涂层之间的适应性，它们结合的牢固程度。建议底漆与面漆搭配使用，只有这样才能使得彩钢瓦翻新质保时间达到较长，兼容性强的底漆才是适用的。

The color steel tile renovation primer is mainly the intermediate layer connecting the metal roof substrate and the finish, so the compatibility of the primer is very important, which is related to the fastness of the finish. The compatibility here refers to the adaptability between coatings and the firmness of their combination. It is recommended to use primer and finish paint together. Only in this way can the renovation warranty time of color steel tile reach a long time, and the primer with strong compatibility is applicable.

底漆的种类有很多种，我们在搭配时，一定要注意底漆与面漆两者的兼容性问题。据业内专业人士的施工经验，不同类型的涂料通常是不兼容的，同一种类的涂料通常是兼容的，为了避免不兼容的发生，影响到施工工程质量，建议大家底面搭配选择同一防腐体系的产品，比如：斯鼎HD系列彩钢瓦专用漆。

There are many kinds of primer. When matching, we must pay attention to the compatibility between primer and finish. According to the construction experience of professionals in the industry, different types of coatings are usually incompatible, and the same kind of coatings are usually compatible. In order to avoid incompatibility and affect the construction project quality, it is recommended to choose products with the same anti-corrosion system on the bottom, such as siding HD series color steel tile special paint.

总之彩钢瓦翻新喷涂底漆它是涂层系统中的层，用于隔绝空气，防止金属屋面发生氧腐蚀，专业的会在里面添加具有防锈性的原材料。它也是具有提高面漆的附着力、增加面漆的饱满度使其更加美观等作用。为了防锈防腐的长效性，彩钢瓦翻新喷涂底漆是不可或缺的一个环节，只喷涂面漆这是不标准的施工体现，因为面漆与底漆的功能不同，面漆侧重于美观度，而底漆则侧重于提高附着力、防腐功能、抗酸碱性等。

In short, the color steel tile renovation spraying primer is the first layer in the coating system, which is used to isolate the air and prevent the oxygen corrosion of the metal roof. Professionals will add antirust raw materials inside. It also has the functions of improving the adhesion of the top coat, increasing the fullness of the top coat and making it more beautiful. In order to improve the long-term effectiveness of rust prevention and corrosion prevention, the renovation of color steel tile and spraying primer is an indispensable link. Only spraying topcoat is a non-standard construction embodiment. Because the functions of topcoat and primer are different, topcoat focuses on aesthetics, while primer focuses on improving adhesion, anti-corrosion function, acid and alkali resistance, etc.

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