Rust is a common "disease" of metals.These sturdy, versatile materials surround us everywhere. They are used to create household appliances, cars, air transport and much more. All the strongest fasteners are also made of metal. But here's the problem: over time, many of them are liable to oxidation - corrosion. The material is destroyed under the influence of the environment, and the construction begins to deteriorate. How to save the metal from imminent death? Which remedy for rust removal? Let's look at the article.
The earlier rust is detected, the easier it is with itfight. If the damage is not too deeply entrained in the metal, it is sufficient to resort to a mechanical cleaning method. To do this, you can surface the surface with a stiff brush. Grinding will remove a layer of contaminants and relieve the metal from further spread of the "contagion".
It is worth noting that the mechanical cleaning stageIt is also used to fight deeply rooted rust before applying chemicals to achieve the best result. As a rigid brush, you can use a large sandpaper.
A good remedy for rust removal -car metal cleaner. This tool is available: it can be purchased at any specialized on the goods for the car store. Before applying it is recommended to clean the surface, damaged by rust, with a hard brush. After that, the area is covered with a layer of means up to 5 millimeters thick and left for a couple of minutes. Then it is necessary to wash off the residues and wipe the surface to dry. If the rust is not completely gone, repeat the procedure.
It should be remembered that any remedy for removalrust is toxic. Usually it is acids, getting on the skin causes a burn. Work should be in protective gloves, glasses and a respirator. In addition, it will not be superfluous to carefully read the instructions for use and precautions.
As a result of popular experiments,a lot of "home" recipes for removing rust. They are based on substances that dissolve iron oxide formed on the surface of the collapsing metal. Homemade rust removal liquid is prepared according to the following recipe:
Mixing ingredients, they must be dilutedliter of water. Place metal elements in the solution that have corroded (the tool will not work for surface treatment). Leave for 15-40 minutes, occasionally watching the process. Remove the parts immediately after the disappearance of rust. After that, rinse well in hot water and wipe until dry. Original appearance and natural metallic luster are guaranteed.
It is known that acids can dissolve manychemical compounds. Hydrated iron oxide is no exception. For high-quality cleansing, you should resort to strong acids, which are hydrochloric, sulfuric and orthophosphoric. However, you should not use pure solutions: they are too caustic. Acid from rust will work properly if you add an inhibitor to it - a substance that slows down a chemical reaction. One of the most affordable is hexamine.
The recipe is quite simple:It is necessary to take any of the described acids and dilute it with water until a 5% solution is formed. Then add the inhibitor in the calculation of 0.5 grams per liter of liquid. The surface is treated with the resulting agent and left for some time. The task can easily cope with hydrochloric, sulfuric or phosphoric acid. Where to buy an inhibitor? If it is not on the market and in specialized stores, use the following recipe:
The solution is made on the basis of phosphoricacid, fights rust in a very profitable way. The tool converts a rust layer into a durable coating. In what concentration should phosphoric acid be? Where to buy it? You can find acids, including phosphoric acid, in auto chemical stores or industry departments. To prepare an effective solution that converts hydrated iron oxide to a durable metal coating, it is recommended to use a 15% or 30% aqueous solution of orthophosphoric acid. The resulting tool is applied with a brush or spray and leave to dry completely.
Another effective method of dealing with "redhead" based on phosphoric acid is the following recipe:
Why does phosphoric acid act onrust? Everything is easily explained in terms of chemistry: it converts iron oxide to phosphate, which forms a kind of film on the surface of the metal that protects it.
What other substances can successfully remove rust? Perhaps more simple methods will be such means as:
All these methods are good for removing rust onmetal machines and other elements of the "non-residential" metal. For home use, there are several more simple and accessible methods for removing red bloom:
Removing rust from metal - long and not the mosteasy process Corrosion can be avoided with the help of some products that protect the surface from destruction. Here are some useful recipes that prevent the formation of rust:
To avoid the "redhead", should be high qualitytake care of the material: avoid its excessive moisture, time to clean from dirt and dust. Developed a lot of anti-corrosion coatings, which can be found in automotive stores.
Средство для удаления ржавчины – едкий раствор, which dissolves the problem or converts it into a protective film. It is worth remembering that any remedy (home or store) is very toxic for both man and metal. It is necessary to strictly follow the rules of application and precautions to avoid damage to the skin and the metal surface.
