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Rust appears on metal products due to moisture or mechanical damage when air enters the iron sheet due to a scratch or crack. It starts chemical reactions, the material is oxidized, and destruction begins. You can stop corrosion with synthetic and folk remedies. Which option to choose? Depends on the area and extent of damage.
Natural remedies
It is enough to clean small red spots with a stiff brush or emery paper, and then paint the metal product. It will protect against the recurrence of corrosion. If the brush does not cope, natural remedies will help.
Potato and Lemon
Dishes and small parts, covered with a thin red film, wipe with raw potatoes, cut in half. Vegetable contains acid that dissolves rust.In small quantities, it does not harm the metal. The treated area is left for 5 minutes and then wiped with a soft, lint-free cloth, removing residual juice and plaque.
They clean the rusted products and potato gruel, to which add ground lemon and 1–2 tablespoons of coarse-grained salt. The mass is applied to damaged areas, leave for 15 minutes, then rubbed with a toothbrush and wash off the remnants of a damp cloth.
Instead of sandpaper use dry lemon zest. It is useful if rust appeared on a metal ornament or other fragile object. The peel works gently and delicately, leaving no scratches on the surface.
Zest can be replaced with a slurry of lemon juice and fine-grained salt. The components are mixed and applied with a toothbrush. Wait 15 minutes for the acid to dissolve the brown film.
The stubborn rust is removed with a solution of lemon juice and table vinegar. Liquids are mixed in equal quantities, applied to the damaged object with a sponge or rag. It is advisable to wear rubber gloves on your hands. Leave on for 2-3 hours, rinse with warm water and rub the area with a hard metal sponge.
Soda and flour
How to clean old rusty coins in order not to damage? Baking soda. Dissolve 2-3 tablespoons of powder with warm water to a thick, uniform consistency. Put the coins in the slurry of soda, take out after 20 minutes. Scrape off the red coating with a metal brush or washcloth. Repeat the procedure if once was not enough.
Brass objects are recommended to be cleaned with vinegar. In 120 ml of liquid dissolve 10 g of salt. Add wheat or corn flour, you can oatmeal powder. Knead the dough thick, like on pancakes, and apply on damaged areas. After 30 minutes, wipe off the paste with a soft cloth, rinse the brass product in warm water and wipe off with a towel.
Important: You can not prepare a solution of wine or apple cider vinegar. Suitable only transparent table. Other varieties leave stains on the metal surface that are difficult to erase.
Citric and oxalic acid
Rust is softened with lime juice, which is mixed with salt. But cheaper to use citric acid. Dissolve 3 bags of the product in a liter of water. Boil the liquid and put rusty nuts, screwdrivers, knives, jewelry or other items into it.Bubbles on the surface of the water indicate that a chemical reaction has begun.
Leave metal products in citric acid solution for 8–12 hours. The softened plaque is removed with a toothbrush or washcloth.
Rust is removed with oxalic acid. The tool even copes with serious damage, but releases toxic fumes. Work with the substance only in ventilated areas. Be sure to use protective suits, respirators, special glasses and rubber gloves.
A glass of water will need 4 tbsp. l oxalic acid. The solution is thoroughly stirred, and then rusted tools are dipped into it. Dishes and decorations that come into contact with the skin cannot be cleaned in this way.
After 30–40 minutes, remove the object using tweezers and brush off the red coating with a toothbrush. The metal product is washed several times in a large amount of warm water, and then wipe dry with a towel or soft cloth.
Unusual solutions
Not only potatoes and lemon juice remove rust. Carbonated drinks, hangover pills and even ketchup help.If the natural formulations do not cope with the red bloom, the damaged product will save the chemistry.
Cola
The composition of sweet soda includes phosphoric acid, which removes corrosion. Cola is poured into a plastic or glass container, rusted products are immersed in a drink. Take out after 5–8 hours, rub with a toothbrush. Spray the carbonated pipes or spraying machines with a sponge or sponge. Wait until the rust becomes soft and brush off the patina with a brush or crumpled foil for baking.
Metal objects are soaked not only in Coca-Cola. Cheap soda has similar properties. The main thing is that their composition was phosphoric acid.
Rust Tomatoes
In the refrigerator is the packaging of an old ketchup with an expired shelf life? Or a can of tomato juice? The product is not discarded, but used to clean tools or knives from rust.
Ketchup or juice to process stains, leave for 20 minutes. Remove the remains of tomato remedy with a rag along with a bloom; rinse the metal surface with warm water.
No hangover, no rust
Alka-seltzer may restore the gloss to the aluminum dishware.In a jar of water, dissolve 5 tablets, immerse spoons or mugs in liquid. Remove after 15 minutes, brush with a toothbrush and rinse under a tap.
Tooth powder and fish oil
Metal rivets on clothes, accessories and tools are cleaned with a mixture of crushed white chalk, tooth powder and liquid glycerin. Dry ingredients are mixed in equal parts. Add the liquid ingredient to make a paste that looks like thick cream.
The tool is applied to the rusty areas and leave for a day. Remove the remnants of mass and plaque with a toothbrush, be sure to rinse the metal object under the tap and carefully wipe with a soft cloth.
Iron water pipes, fittings and car parts are recommended to be cleaned of rust with fish oil. The product is applied with a thick layer to the whole object, left for 3-5 hours. The rust becomes soft and pliable. It is easy to remove with a toothbrush or sponge.
This method has a plus: fish oil creates a protective film that prevents the occurrence of corrosion and increases the life of pipes or tools.
Chemical experiments
Lactic acid or zinc chloride can remove rust from water pipes, tools, fittings, and metal poles. The substance enters into a chemical reaction with a red bloom, and it changes color, becomes dark blue or black. Rust is removed with a cloth dipped in a thick cream or oil. Some types of metal after such cleaning darken, so do not recommend cleaning with zinc chloride or acid dishes, because the pipes can be painted, and the plate or spoon will have to be thrown away.
Option 1
It will take 100 g of vaseline oil to which 50 g of lactic acid is added. Stir the ingredients until smooth, apply to rust. Acid turns into red salt, which can be easily cleaned with a toothbrush or emery cloth. After processing, the metal surface is wiped with a soft cloth moistened with petroleum jelly or unrefined sunflower oil.
Option 2
A solution is prepared from a liter of water, 50 g of zinc chloride and 5 g of potassium hydrotartrate. Tools are immersed in liquid, left for several hours or days, depending on the degree of damage. Then remove, brush with a stiff brush and rinse with water.
Handle chemicals carefully, wearing rubber gloves and other protective equipment. Remove tools from the solution with tweezers, do not put your hands into the liquid.
100% result
An agent consisting of two solutions will stop corrosion. The structure of the first includes:
- ammonium - 53, 5 g;
- formalin (40%) - 200 g;
- caustic soda - 52 g.
Dissolve the components in 500 ml of filtered water. While the first solution is infused, prepare the second. It will take 1 liter of water and 100 ml of sulfuric or hydrochloric acid. Stir the ingredients, pour 30 ml of the first into the second solution.
Wipe the part with gasoline before handling the acid to degrease. Immerse the rusty object in the solution for 10 minutes, remove the forceps and rinse with water. It is not necessary to rub the brush, the plaque will completely dissolve and will independently lag behind the metal surface.
Electrochemical method
Snap a piece of zinc to the tool or parts. Put in water, add sulfuric acid: 20–30 ml of substance per 1 l of liquid. After a few days the plaque will dissolve, the part will be clean and shiny.
To quickly remove rust, it is recommended to prepare a concentrated preparation from water and chlorine tin and immerse a metal object in it. Hold for 3–5 minutes, rinse under running warm water.Wipe dry with a clean towel.
Perfect shine
Put some spoons of crushed charcoal into engine oil. Soak a rag in a mush and clean the part covered with red bloom. The tool removes rust and polishes the metal surface.
Special means
The stores sell solvents and converters designed to combat corrosion. What is the difference between drugs?
Solvents enter chemical reaction with a raid, changing its structure. Rust, treated with gel, can be removed from the surface of the part, usually with a dry cloth, without any effort. The most popular and inexpensive drug "rust neutralizer VSN-1."
The main component of this tool is oxalic or phosphoric acid.
Converters that are produced in the form of suspensions and emulsions, as well as solutions, not only remove rust, but also form a protective film on the metal surface. It stops corrosion and prevents its reappearance.
The active component of converters is tannin or phosphoric acid.
Features of use
Before processing, the parts are cleaned with a stiff brush, removing loose particles of rust and dust. Then the surface covered with red bloom is disinfected with gasoline or “White spirit”. The drug is stirred and applied with a brush, evenly distributed over the damaged areas. If he turned violet-blue, the reaction began.
Brown plaque is removed with a mixture of 15 ml of tartaric acid, 5 ml of butanol and 30 ml of phosphoric acid. Dilute with liter of water, process metal details.
Work with tools designed to remove rust, you need to carefully. Most of them contain toxic substances or aggressive ingredients that can leave a burn on the skin or mucous membranes. After the removal of plaque, it is recommended to carry out preventive treatment of parts with gasoline or kerosene, because it is easier to prevent the appearance of corrosion than to stop this chemical process.
Video: how to easily remove rust from metal
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