Lime white - we study the product
Lime is the cumulative name of the firing products, as well as the subsequent processing of chalk, limestone and other carbonate rocks. There is a slaked( Ca( OH) 2), quicklime( CaO) and sodium( Ca( OH) 2 with NaOH).
Our ancestors knowingly used lime as a whitewash, this material has disinfecting properties, which makes it impossible for fungus and mold to appear on the finished surfaces. Until now, almost every one of us is faced with this kind of whitewashing in our own entrances.
Whitewashing walls with lime in public places allows you not to carry out a second repair for as long as possible.this whitewash in the process of drying forms a special film that is resistant to abrasion.
In addition, whitewashing the ceiling with lime in baths, bathrooms, pools and showers will protect it from moisture, becausethis material is characterized by good moisture resistance and strength. Lime coating is also used in the finishing of closets, basements, garages, etc. The main factor influencing the choice of this material is its cheapness and environmental friendliness in comparison with other analogues.
To , the defects in the of this coating include the possibility of the appearance of streaks, stains, stains and bubbles when using a solution composed without observing the required proportions. If the cooked lime whitewash is sufficiently liquid, the color of the surface to be painted will be unsaturated, and if the composition is supersaturated, the coating will bubble and dry when it dries.
In addition, the quality of the coating affects the quality of the original lime. To the disadvantages of this material is its corrosivity. Therefore, when applying the composition to the surface, one must be extremely cautious, and it is better, before diluting lime for whitening, to dress in old clothes and protect hands and face with gloves and a respirator, and hide eyes behind special glasses.
How to lime with lime - choose the approach of
Before deciding how to whitewash the ceiling with lime and at the same time how to make lime for whitewashing, it is necessary to properly prepare the substrate for applying this coating. For treatment, the substrate must be firm and clean. It is unacceptable to apply this coating on surfaces with rust, efflorescence, as well as with bituminous and greasy stains.
If there are cracks on the base, they need to be expanded, primed, then plastered and smoothed. We clean the old whitewash with a brush. The whole surface is plastered and primed. Just before the whitewash, the batteries, platbands, skirtings, and floors are carefully closed. All outlets and switches are sealed with adhesive tape.
For application, you can use brushes, rollers, spray gun, as well as a normal vacuum cleaner. The application of this whitewash with a brush is the simplest and cheapest way. It is usually applied when it is necessary to treat lime with small surfaces.
It should be noted that the quality of the layer will largely depend on the state of the fly brushes. It is advisable, before bleaching with lime, soak the brush in water for a couple of hours to prevent the appearance of brush hairs on the treated surface.
If the surface is large enough, a more suitable option would be the use of a special atomizer. Such a sprayer should be kept about 30 cm from the surface and at a right angle, so that the lime consumption during whitening is minimal.
A common vacuum cleaner can be used as a spray gun. The necessary equipment is usually included in the equipment of this device.
How to dilute lime for whitewashing - it's pretty simple
Very often novice home masters do not know how to dilute lime in the proper proportion of to get the maximum result. Experts advise for every 2.5 m² of treated surface, take 0.5 kg of lime and 0.75 liters of water.
To give whitewash additional durability, you can add to the composition of a third of a tablespoon of drying oil and about 5 g of table salt. The entire solution is thoroughly mixed and filtered through a sieve to remove lumps, grains and impurities.
To add a light blue bluish to whitewash, which will be beneficial to look at the ceiling in natural light, you can add 20 g of normal blue to the resulting mixture.
Before surface treatment, it is necessary to thoroughly moisten the substrate. This whitewash is usually applied in two layers. The second layer is recommended by experts to apply even a slightly wet previous, t.this allows for greater strength.
For finishing work it is better to choose a cloudy day or evening time, becauselime does not like dry hot days, as well as direct sunlight.