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近年来,在涂刷金属表面时,越来越多地采用各种预先不去锈涂刷锈蚀表面的化学处理方法。从工艺上看,同时既能打底,又能防护的底漆,是一种较有发展前途的处理方法。在一些底漆中添加某些化学性能上与腐蚀产物起反应的特种组份,诸如亚铁氰化钾、铁氰化钾、各种鞣料、磷酸等。此类底漆的主要缺点是耐水性差,降低了其防护性能和限制了其应
In recent years, when brushing a metal surface, a variety of chemical treatment methods that do not rust-remove the rust surface beforehand are increasingly used. From the process point of view, at the same time both primer, but also protective primer, is a more promising approach. In some primers add certain chemical properties and corrosion products react with special components, such as potassium ferrocyanide, potassium ferricyanide, all kinds of tanning materials, such as phosphoric acid. The main disadvantage of such primers is their poor water resistance which reduces their protective properties and limits their applicability