Among the large number of varieties of paints, lime paint is its place of honor. The peculiarity of the paint is that after its application it forms a loose layer with a high vapor permeability of air. The paint is used for facades, therefore it resists temperature extremes, other and other excellent external environments. The compositions have found their widespread use due to their low cost.
At the same time, there are some nuances regarding working with it. If, when applying the paint and varnish material, you do not add salt or drying oil in time, then the finished surface will constantly stain your hands and clothes. What is limewash paint made of? What is it and how to make it yourself? You will find out in this article.
What Is Limewash?
Limed paint belongs to the type of mineral paints. This means that finely ground minerals are used as pigments. As the name suggests, the binder is slaked lime. It can sometimes be added as a limestone liquid. To increase its water retention capacity, during manufacture, it is necessary to add kitchen salt, calcium chloride, and aluminum to it. 101-limewash-paint can be obtained using inorganic pigments. The color range of limestone compositions is light.
Note that the paint itself is short-lived, however, due to the process of lime carbonization, the operational characteristics of the room will improve over time. The limewash stone must not be applied to cement plaster. It is an affordable and cheap mixture that is widely used for facade decoration and restoration work. Limestone painting can also be done inside. The surfaces to be treated are very different:
- a rock;
Only now it is impossible to paint the metal with limestone paint. It is noteworthy that lime based paint can be bought ready-made or prepared on your own. It is clear that the first option is easier, but cheaper to do it yourself. Moreover, the process is not that complicated.
How long does lime wash last? What about DIY limestone paint? How to do it?
DIY Limestone Paint
How to make limewash? The preparation process is not as complicated as it might seem. The main thing is to make everything you need and follow the instructions. To prepare lime wash recipe of 10 kg of limestone mixture, you will need:
- 1.5 kg of lime
- 100 g of combined drying oil
- 100 g of boiled salе
- plastic mixing tank (bucket, bowl)
Instructions for making limestone whitewash:
- Pour a measured amount of lime into a plastic bucket
- Pour 8.5 liters of water inside
- Stir the contents thoroughly
- Add salt and drying oil
Why add salt to lime wash? As for the salt, it must be entered separately. Don't just fall asleep, but prepare a saline solution. If the mixture requires whitening, then a small amount of blue is added to the composition. After which the contents are thoroughly mixed. It remains to strain the resulting mixture.
True, there are many recipes on how to limewash. For example, some people make limewash wall like this:
- 1 recipe: 3 kg of limestone dough is diluted with 5 liters of water, add 100 g of boiled salt there and mix thoroughly. The mixture is filtered through a fine-grained sieve. The resulting solution is diluted with water to make 10 liters of paint, and then 400 g of pigment substance is added.
- 2 recipes: dilute with water (5 liters) for 1.5 kg of quicklime and immediately add 0.5-1 kg of natural drying oil. The resulting solution is filtered and the rest of the water is added. As a result, you should get 10 liters of paint. It remains to add the dye.
One of the varieties of lime wash paint technique is a glue-based composition. To prepare this, you will need to dilute chalk with water to make a paste. After that, the solution must be placed so that it settles for 24 hours. When the time has come, the composition is stirred and its density is checked. To check the density, use the following methods:
Note! When whitewashing with lime wash stone, it must be borne in mind that as it dries, the tinted whitewash becomes lighter.
That is why a test stain should be done before choosing a shade. For this, it is applied to the glass in a thin layer. After drying, the finishing shade will appear.
How to make lime wash for brick? There is one trick that will improve the performance of a limestone paint. If you add 10% bone glue to the composition, then the painted ceiling will not crumble and fall off. When adding glue to the paint, you need to check the fixation of the whitewash. This is done by a proven method - by applying paint with strokes on the glass.
Advantages and Disadvantages of Limestone Paint
Although there are few advantages of limestone compositions, they are:
- Low cost. This is almost one of the cheapest paints.
- Since there are no toxic substances in the composition, it is environmentally friendly and safe for health.
- Can be used for different types of surfaces.
- Limestone paint is vapor permeable.
- Resistant to low and high temperatures.
- Resistant to moisture.
This is where the pros end. If we note the disadvantages, then this is the exfoliation of lime particles after drying and fragility. And you can hardly call it a beautiful treated surface. Many have encountered walls decorated with lime wash interior walls with similar paint. After that, one could observe the smeared sleeve or side of the garment. True, this phenomenon can be avoided by adding drying oil and salt to the composition. For utility and storage facilities, this is a good option. Nevertheless, if you are doing repairs in a residential building, then it is better to spend a little more money and buy high-quality paints and varnishes.
Limestone Paint Application
The staining process itself is very simple. You can work with the composition using a roller or paintbrushes, or using a spray gun. Before you start painting, you need to prepare the wall. The preparation of limewash paint for wood is the same as when painting with other paints: the surface is cleaned of dust and dirt, all irregularities and protruding parts are removed. For repair seals, a similar mortar is used. Compositions with cement are not allowed. There is no need to prime the base. If moss, mold, and mildew are found on the surface, work is carried out to remove them. The same goes for greasy stains.
Advice! Remove old organic paint from the surface.
If limestone paint was previously applied to the surface, then only paint layers that are weakly adhered and peeled off the need to be removed. A steel brush made of copper or stainless steel is suitable for work. Alternatively, rinse the surface with a powerful jet of water.
This takes into account the working conditions. For example, when painting limewash finishes, the room temperature should be more than +5 degrees Celsius. If the weather is warm and windy, then the surface needs to be moistened before and after staining. Do not work in rainy weather. It is recommended to work in cloudy weather when the surface is not exposed to direct sunlight. When walls are painted in a room, the optimum temperature is no more than +20 ºС.
Painting with white limewash is carried out in at least 3 coats by means of a brush or brush. In this case, the interval between the application of the next layer is equal to its drying and is a day. The wall is moistened with water before and after each layer.
Note! To process a solid surface, you need to stock up on a sufficient amount of limestone paint from one batch.
And the boundary between the surfaces, covered with compositions of different preparation batches, is treated with a solution of 1 part of the old batch and 1 part of the new one. At the same time, plan everything so that the junction is in the most inconspicuous place.
If the surface is solid and small, then the work is done continuously. The end is at the corners of the room, borders with windows, doors, balconies, etc. A uniform result can be obtained if you avoid repainting the finished surfaces in small areas. The ideal way to work a construction seam is to apply light pressure. It must be remembered that with fluctuations in humidity and temperature in the room, the color and shade may change in places. And subsequent moisturizing will make the color darker.
When the work is done, you need to spotless the tool. It washes immediately after use with running water. You can use a mild vinegar solution in water and rinse with running water.
Now you know what is and how to make lime paint. This is a composition that has been used by our ancestors since ancient times. It is based on lime, water, and dye. Thanks to the detailed instructions, you know not only how to make the composition with your own hands, but also how to carry out the staining process.