On the surface it forms a compact layer of iron tannin compounds that are insoluble and an excellent basis for later rust protection paintings such as synthetic, polyurethane paintings, etc. In contrast to other products, it does not cover the existing oxyd layer, but dissolves the Fe³ layer and chemically complexes, in one work step, a new metal connection on the previously corroded area. To do this, Fertan as a rust converter dissolves the existing layer of rust (Fe³) and decomposes it into a reaction stone powder. The underlying, non -corrosive, Fe² layer underneath is protected with the new metal connection and the previously corroded metal can be provided with the required end protection within 6 months. A liter Fertan Is sufficient for an area of approx. 15m². On light areas can.
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