Whitewash

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Whitewash , or calcimine , kalsomine , calsomine , or paints made of dead chalk (calcium hydroxide, Ca (OH) ₂) and chalk (calcium carbonate, (CaCO ₃), betel "Other additives are also used.

Video Whitewash

Usage as paint
Lime cleansers through reaction with carbon dioxide in the atmosphere to form calcium carbonate in the form of calcite, a reaction known as carbonation.
Usually applied to the exterior; However, it is traditionally used for interiors in food preparation areas, especially rural dairy farms, due to its slightly antibacterial properties. Sometimes, it is colored and used on structures like the hallway of an apartment building, but is not popular for this as it can be contagious to clothing for a small degree. In England and Ireland, chalk is used historically, both for interior and exterior, in workers' huts, and still maintains something of this association with rural poverty. In the United States, a similar attitude is expressed in the old saying: "Too proud to whitewash and too poor to paint".
Whitewash is highly compatible with rocks because it is easily absorbed and the resulting chemical reaction solidifies the medium.
Lime is pure chalk in water. It produces a unique surface light due to the double refraction of calcite crystals. Rinse and whitewash well heal to be the same material.
When lime or lime is initially applied, it has very low opacity, which can cause the beginner to exaggerate the paint. Drying increases opacity, and subsequent treatment increases opacity even further.
Limewash relies on being pulled onto the substrate unlike modern paint attached to the surface. The draw process needs to be controlled with damping down. If the wall is not wet, it can leave lime and pigment on the surface of the flour; If the wall is saturated, then there is no surface tension and this can cause lime failure. Muffling is not difficult but needs to be considered before the application of lime.
Additive
Traditionally used additives include water glass, glue, egg white, Portland cement, salt, soap, milk, flour, and soil.
Whitewash is sometimes colored with the earth to achieve a color that includes various colors white, beige, yellow, and various damaged chocolates.
Blue dyes (such as Reckett's "Dolly Blue" in Britain, Ireland and Australia, Loulaki in Greece, or Mrs. Stewart's Bluing in North America) previously used to give bright colors to boil white textiles are a common 19th century. In addition and give a pale blue paint.
Historically, pig blood was added to provide pink Suffolk color, a color that is still widely used in house exteriors in some areas of the UK. If animal blood is applied excessively, however, the iron oxide may harm the lime-binding forces.
Pozzolan ingredients are sometimes added to give a harder coat of paint. This addition, however, creates a short load time, and therefore requires timely application of the altered paint.
Linseed oil is sometimes added (usually 0.5-2%) to improve adhesion on tough surfaces.
The addition of cement makes the paint harder to white or gray. The load time is short, so this is added at the point of use. However, the use of cement limits aspect of breath from lime; cement should not be applied to historic buildings in general.
Dilute glue increases paint toughness.
Wheat flour has been used as a strengthening amplifier strength. Salt is usually added to prevent flour from becoming moldy then in wet conditions. The use of salt brings its own problems, such as damage to bricks and stones.
Limitations
The base of lime can be inadequate in its ability to prevent the entry of rainwater. Additives are being developed but this has the potential to affect the permeability of free steam; for this reason silicate paints, which are more common in Germany, are increasingly popular in the UK than chalk.
Cost
Simple lime paint is very cheap. The 25 kilogram (55 pound) limestone bag makes about 100 kilograms (220 pounds) of paint, and costs about Ãƒ, Ã‚ Â£ 6 in the UK (2008).
Maps Whitewash

Apps

Orchards

Whitewash applied to trees, especially fruit trees, to prevent sun blisters. Most often only the painted rootstock. In Poland the whole stem painting is also said to help keep the body of the tree cold in late winter and early spring and therefore help prevent fruit trees from blooming too fast, ie when warm sunny days can increase the rapid tree warming, increased sap and blooming and intermittent cold nights can damage the outer circle of trees and destroy buds and young flowers.

Dairy bar

In the mid-20th century, when farming families with a common dairy storehouse in the Upper Midwest of the United States, chalk is an important part of routine warehouse maintenance.

Traditional animal granaries contain very rough surfaces that are difficult to wash and keep clean, such as rocks and bricks, and also roughly cut wood for the ceiling. If left alone, this surface collects dust, dirt, debris of insects and waste, and can become very dirty.

Sprinkle the help in sanitation by coating and smooth the rough surface. The consecutive application of lime builds a layer of scale that is peeling and in the process of removing surface impurities with it. This layer also has antimicrobial properties that provide hygienic and sanitary benefits for animal barns.

Typically whitewash farm applications are an annual process and have the following steps:

The surface to be protected from white washings is flanked by plastic sheeting or bags, such as windows, lamps, and milk pipes in the milk shed.
The inside is removed from all removable equipment leaving walls, floors, and ceilings as flawless as possible.
High volume high-pressure air sticks are used to destroy the loose whitewash scales of walls and ceilings. These released debris are swept into the gutter and into the manure handling system that ultimately contributes to soil fertility.
A mobile washer trailer is used to mix lime into a viscous liquid, which is then sprayed as a uniform coating on the inner wall, ceiling, and post, to all accessible nooks and fissures.
The coating is left several hours dry and stops dripping from the ceiling, and protective plastic cover is removed. Finally after the walls and ceiling are quite dry, the equipment is brought back to the warehouse.

Electrical appliances that can not be emptied are often protected from the protective outer shell that prevents whitewash intrusions. For example, the circuit breaker panel can be enclosed in a wooden cabinet that creates a lime spray coating from entering the panel.

Other uses

Whitewash painted on the internal walls of Royal Navy vessels during the Age of Sail to increase light levels inside the ship's gundeck, reducing bacteria and preventing wear on the stomach. It was also used during the Second World War by the German armed forces as an easy-to-use winter camouflage for vehicles, airplanes and soft and hard helmets.

Concept Whitewash Brick Fireplace : Top Fireplaces Whitewash Brick ...

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In popular culture

The incidence of Tom Sawyer turning the fence into punishment was a famous picture in American literature. It appears in the Tom Sawyer Adventure , written in 1876 by Mark Twain.

Metaphorically, whitewashing refers to emphasis or "glossing over" (possibly near parallel constructs) of potentially damaging or undesirable information. In many parts of the British Commonwealth, whitewash refers to a game where one side fails to score a goal at all; its use is mainly found in cricket.