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.

其作用是由彩鋼瓦翻新的防腐需求決定的，需求也決定了專業的彩鋼瓦專用漆底漆必須具備的許多優良特性。

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.

為了阻止彩鋼瓦的銹蝕，必須將它與空氣隔絕，底漆發揮了這樣的作用。因此這就決定了專業彩鋼瓦翻新底漆必須具有良好的附著力，只有這樣才能確保使金屬屋面很好的與空氣隔絕。為了更加有效的防腐，直接與金屬屋面表面接觸的底漆還必須具備良好的防腐性、防銹性、耐油性、耐化學性和耐水性等特點，它是直接涂裝在經過表面處理的本身部件表面上的道涂料，它是整個涂層的開始部分。因此如果時彩鋼瓦翻新噴涂底漆沒有做的話，僅噴涂面漆，其防銹性能會比較低，使用時間不會很長，什么“質保8年、10年”都是空談。

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.

彩鋼瓦翻新底漆主要是連接金屬屋面基材與面漆的中間層，所以底漆的兼容性顯得至關重要了，它關系到面漆的牢度問題。這里說的兼容性是指各涂層之間的適應性，它們結合的牢固程度。建議底漆與面漆搭配使用，只有這樣才能使得彩鋼瓦翻新質保時間達到較長，兼容性強的底漆才是適用的。

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.

底漆的種類有很多種，我們在搭配時，一定要注意底漆與面漆兩者的兼容性問題。據業內專業人士的施工經驗，不同類型的涂料通常是不兼容的，同一種類的涂料通常是兼容的，為了避免不兼容的發生，影響到施工工程質量，建議大家底面搭配選擇同一防腐體系的產品，比如：斯鼎HD系列彩鋼瓦專用漆。

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.

總之彩鋼瓦翻新噴涂底漆它是涂層系統中的層，用于隔絕空氣，防止金屬屋面發生氧腐蝕，專業的會在里面添加具有防銹性的原材料。它也是具有提高面漆的附著力、增加面漆的飽滿度使其更加美觀等作用。為了防銹防腐的長效性，彩鋼瓦翻新噴涂底漆是不可或缺的一個環節，只噴涂面漆這是不標準的施工體現，因為面漆與底漆的功能不同，面漆側重于美觀度，而底漆則側重于提高附著力、防腐功能、抗酸堿性等。

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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