Information about rust transducers

Iron and steel are among the most widely used materials in humans. Cars, machines, parts of buildings and even furniture are very often at least partially made of iron. But although iron is used as a material almost everywhere in our environment, it is a comparatively sensitive material. The element iron is quite bumpy and therefore relatively reactive. Nevertheless, it is a popular material that is relatively easy to process and at least mechanically very stable. To compensate for the chemical reactivity, various methods such as the production of alloys or the sealingthe surface with weak or non-reactive substances and agents. But these methods only partially protect the iron. A protective layer can scratch and then be completely useless, alloys are more resistant than pure iron, but they also corrode with time. When a piece of iron is now corroded, the question arises of how to protect it from total destruction. The solution to this is rust converter ,

Like iron corroded

Iron reacts over time with the oxygen in its environment. If the environment contains relatively little water, corrosion is not a big problem. It produces iron (III) oxide, which is itself very inert and thus stable. It forms a thin layer on the iron and protects it from further corrosion. This case, however, occurs very rarely, since usually already the natural humidity is sufficient, so instead of ferric oxide, a complex compound of ferrous oxide, ferric oxide and water is formed, which is also called iron hydroxide – the rust , This has a completely different structure than pure ferric oxide and therefore does not form an unreactive protective layer. Rust is a voluminous and porous substance that is similar to a spongeis constructed. In this case, further oxygen can penetrate easily and deep down, on the border to the undamaged iron, it can continue to attack. The question of how existing rust promotes further rusting is discussed, but rust is at least hygroscopic, i. It draws water from the environment, which can at least increase the occurrence of further rust. Most often, there are at least small amounts of various salts in the environment that can penetrate the water and actually accelerate rusting. As a result, new rust is created until no iron is present, which has not yet corroded, and the workpiece is ultimately completely destroyed.

How does a rust converter work?

The active ingredient of rust converters is phosphoric acid. Since it is a liquid, it can also penetrate into the spongy rust and act at the base to the non-corroded iron. The phosphoric acid reacts with the rust and converts it further. In this case, iron (III) phosphate and water are formed from iron hydroxide and phosphoric acid. In turn, since iron (III) phosphate does not have the porous structure of the rust, the material loses the excess volume again and settles on the previously rusted workpiece as a likewise unreactive protective layer. The water, which is released during the reaction, exits the workpiece again and volatilizes in the environment. It remains a gray tarnished but rust-free and protected against rust workpiece. When buying rust converters you do not have to pay much attention. Importantly, that’s enough rust converter is applied so that the rust can be completely converted. Products that should be washed off after treatment should be avoided.