How to dilute lime for whitewashing

Lime - a popular material for wall finishing, with disinfectant properties, not prone to fungus and mold. Most often this type of decoration is found in public places, where a coating that is resistant to wiping and mechanical influences is necessary.

General information on lime

LimeIs a mixture of substances that are a product of firing limestone rocks. On the shelves of shops the most common is lime quicklime and pushenka slaked. Lime destroys all microorganisms falling on it, and therefore is the most hygienic type of finish. In addition, it has a high index of moisture resistance and strength. When the lime coating completely dries, a film is formed on it, which provides such durability of lime whitewash. Another advantage of lime is its low price compared to other types of finishing materials.

There are flaws in lime. If the master doing the job does not know how to dilute the lime properly and makes the solution in the wrong proportion, then on the treated surface there will appear bubbles, streaks and streaks. Excessively liquid solution will not give the desired color on the wall, but too thick when dried, will bubble and fall off. Avoiding this is simple - dilute lime by strictly following the instructions and in the right proportion.

Scope of lime

• In construction, lime is used as a plasticizer of cement solutions. It prevents the cracking of the solution and binds it well. In plaster mixtures is an indispensable ingredient. Helps the coating to rest on stone and wood surfaces. For this purpose, only slaked lime is used.
• In gardening it is used for processing trees and reducing acidity in the soil. For whitewashing, lime is mixed with copper sulfate.

• In industry, lime is treated with animal hide, it softens and disinfects water.
• In everyday life, lime is used for whitewashing of various surfaces - walls, ceilings, stoves, etc.
• In medicine, chlorine lime is used to disinfect premises, appliances and water.

Lime dilution proportions and its consumption

The proportion of lime dilution depends on the type of material used. On the shelves of shops is exhibited lime quicklime and slaked lime lint. How to grow a second kind of lime read below. As for the quenching of lime and the use of chloride solution, this information is in a separate section with the same name.

Pusher lime is sold in two versions - powder or liquid dough. Both these configurations are diluted in a ratio of 3: 1, that is, 3 liters of water per 1 kg of powder or dough. The result is about 8 kg of whitewash, which is enough to handle 12 m2 of surface. The consumption will increase if the brickwork is white.

Another way to calculate how to dilute slaked lime is correct - proceed from the general quadrature of the surface to be treated. For this, 500 g of lime and 750 ml of water are taken for every 2.5 m2.

Consumption depends not only on the type of surface to be coated, but also on the materials used for whitening - brushes, spray guns or others. Optimal materials for whitewash will also be discussed in a separate section. As for the cost of work, the lime is not at all expensive material, which will make finishing activities not costly.

How to dilute the lime

The process of lime dilution on the one hand looks quite simple, but, nevertheless, it has some important nuances:

1. Lime is mixed in small portions, do not immediately connect a large amount of powder or dough with water. The maximum permissible value of water poured in at a time is 1 liter per 2 kg of lime.
2. When water and lime are mixed, a chemical reaction begins, the product of which is heat. Therefore, it is best to pour the powder with cold water.
3. Stir the mixture thoroughly and add another liter of water, stir again. This works until the entire required volume of moisture is poured.
4. The diluted and carefully stirred mixture is allowed to settle for 24 hours.
5. At this time in another container, pour 2 kg of salt into 1 liter of water and mix until the salt is completely dissolved. It is best to prepare this solution after the lime has run out, otherwise the salt will settle for a day and it will have to be hindered again.
6. When the lime solution is ready, salt water is poured into it and stirred. The mixture is diluted with a small amount of water to bring it to the desired density.
7. Salt water and lime are mixed again and left for another 24 hours.
8. Salt in lime is added to ensure that it is less washed and left on hands and clothes when touched after drying. Whitewash is carried out and without a brine, for this, lime is only necessary to dilute with water and allow to settle for 24 hours.

How to quench lime

Unexpanded lime is used as an astringent additive for plasters and various cement mortars. It gives the material plasticity and makes it a bunch with a stronger base. But for whitewashing of surfaces quicklime is not good. Optimum for this purpose to buy ready-made powder or dough pouch. If you bought the quicklime for whitewashing, then it is not difficult to extinguish it.

Extinguishing lime with your own hands in a residential environment is simple and not dangerous. In industrial plants, a special pit is often used for this process, into which powder and water are poured in the right proportion. The amount of water added depends on what should be the resulting material - thick or milky.

The lime quenching period is 24 hours, but it is optimal to withstand it for 36 hours. For quenching you will need lime itself, water and any long object for stirring. Work is necessary in glasses, a respirator and a tarpaulin suit. Do not allow solution drops to penetrate the skin, as it will damage them.

The quenching tank is clean and free from corrosion. The size and depth depend on the amount of material. Lime powder is poured into a container and poured with water in a ratio of 1: 1 - 1 liter of water - 1 kg of lime. Unexpired lime gives off a large amount of heat when interacting with water, the temperature reaches 150 ° C, so it is necessary to conduct all work carefully.

You should also know that lime during boiling boils and splashes, but it must be constantly stirred. Active processes in the mixture take place for 5-30 minutes, and all this time the lime is mixed with a long object. That is why such careful remedies as described above are necessary.

When the processes in lime have stopped and it has "calmed down", it is considered to be extinguished, but it is too early to start working with the material. The cap is covered with a lid, placed in a dark cool place and left for 2-3 weeks, in some cases, lime is kept up to 4 weeks. The lime which has sustained necessary term will perfectly lie on any surface.

Before use, the quenched lime is diluted with water. Here the proportion is chosen arbitrarily. The signal that the lime is ready is a tight white trace on the stick, which is stirred by the solution during the dilution. On average, from 1 kg of the slaked mixture, 10 liters of whitewash are obtained.

How to dilute bleach

Chlorine lime is a well-known disinfectant called chlorine. It is widely used in domestic conditions, in industry, medical institutions and in public places, requiring high-quality bacteriological treatment. Bleach is larded in various ways, it all depends on the purpose of its application.

For disinfection of premises during cleaning, add 30 g of bleach to 1 liter of water. This solution cleans dirt, fungi and mold, while the surface washed by such a solution will become sterile clean.

To remove the smell of urine from cats and dogs, chlorine lime is also effectively used. But it must be taken into account that chlorine negatively affects the health of animals, its smell irritates sensitive receptors in the respiratory organs of four-legged pets and disrupts the sense of smell. Therefore, it is not recommended to use chloric lime in animal habitats. But if the domestic pet "has left" in the wrong place, then they use chlorine bravely. To do this, it is diluted with water in a ratio of 1:10 and wipe this solution with a source of odor. Work in this case is necessary in gloves, to protect the skin of the hands from chemical burns. Before work, check the coating reaction for chlorine solution in an inconspicuous place.

Use bleach for bleaching laundry. Chlorine effectively copes with yellowed things and complex spots, but application is allowed only for white things. In this case, there is no need to dilute powders, since special liquid preparations are sold for bleaching. Use them in such a proportion, which is indicated on the package. Lingerie is pre-soaked, and then washed in the usual way - with hands or in a typewriter.

Caution : When handling chlorine, all safety precautions must be followed. This substance burns the mucous membranes and skin, resulting in ulcers and swelling. If bleaching occurs on the skin or mucous membranes, it is necessary to rinse the affected area thoroughly with water and consult a doctor if severe wounds appear on it.

What additives are mixed with lime

The diluted lime is ennobled before being applied to walls, adding various substances to it. Such additives are liquid glass, salt, soap, glue, flour, milk, egg whites and colors for paints. Colors for paints are perfectly combined with lime and allow to give it any shade.

The addition of linseed oil to the whitewash makes it more suitable for the processing of very smooth surfaces, on which the paint coating is not good. Glue and salt make whitewash viscous, after drying it leaves no residue when touched. If you combine the addition of glue or salt and color in the lime, then it will be an excellent material for domestic work in the house. At cost, the use of lime is more profitable than painting walls with water-based paint or other types of materials, and many of them even surpass the quality and disinfecting properties.

Surface preparation for whitewashing

If there is diluted lime, then half the case is already done, now it remains only to prepare the surface and choose tools for whitewashing. The rules for surface preparation and whitening are simple:

1. It should not contain greasy or rusty stains. All traces before the application of whitewash must be removed.
2. No defects. Minor unevenness of the wall is eliminated with a putty.
3. After applying whitewash to the surface, exclude all drafts and protect the room from direct sunlight.
4. On the whitewashed surface do not impose a chalky layer, otherwise there will be stains and stains.

One of the most important moments in whitewashing is choosing the right tool for this process. There are several options. The most popular tool for whitewashing, which has proved itself for many years - a special brush. A tool that can not be used in any way - a roller. The first layer of whitewash, imposed by the roller, falls well, but when the second layer is applied, problems begin, as whitewash stretches behind the roller and falls behind the wall.

For brick walls, it is optimal to use a brush with natural bristles. To hide the stripes that the brush leaves, a second layer is applied in the direction of the light stream. Successfully used for whitewash spray guns. With their help, lime evenly fits on the surface, while the consumption is much lower than when working with a brush. Manual spray guns have a long hose, which is convenient to work on high walls and ceilings. Electrical devices in this regard are less convenient, since the power button near them is next to the nebulizer. Also used for whitewashing walls is a conventional sprayer for plants.