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There are two types of paints based on chalk and similar materials: washable paint, which can temporarily draw something on the sidewalk, and persistent paint, which can be used to paint furniture. For the manufacture of washable paint, you will need to take chalk or corn starch as the basis. To make resistant paint, you will have to take something more resistant, like alabaster, as the basis. Making chalk-based paints on your own will require you toaboutmore effort than going to the store and buying finished paint, but you will save a lot on this!
Step 1: Chalk paint
The advantages of chalk paint include the following points:
- It does not require preliminary surface preparation, grinding, priming. In addition to surfaces having a vitreous varnish coating or heavily soiled, having defects, scratches.
- It dries quickly and lays on almost any surface: metal, glass, wood, ceramics.
- The paint is very opaque. Perfectly covers the old coating.
- The paint is practically odorless and non-toxic.
Chalk paint, after drying, becomes dull, giving the surface a velvety appearance and creating the effect of antiquity. For the manufacture of chalk paint, we need a water-dispersion paint (latex or acrylic) and some kind of “fixing” component. You can use gypsum, calcium carbonate or grout for narrow joints. The main purpose of the “fixer” is to add strength to the paint and provide good adhesion to the surface. Waterborne dispersion paint gives elasticity, and curing agent gives strength. In this project, calcium carbonate was used, from which chalk is made.
The proportions are as follows:
- 2 parts calcium carbonate,
- 3 parts latex paint.
By mixing the components in such proportions, we get a rich, thick paint. The surface of this paint can be protected with wax.
Step 2: milk paint
Now we turn to the manufacture of milk paint. To make it, skimmed milk powder, water, pigment and slaked lime are required.
- 1/2 cup milk powder
- 1 teaspoon of pigment
- 1 pinch of slaked lime
- 2 tablespoons of water.
Now it is important to mix all the ingredients together very well!
Paint can be stored in the refrigerator for no more than 2 days. To protect the surface of milk paint, coat it with polyurethane or spray varnish.
Features of chalk paint
Chalk paint is characterized by distinctive features:
- with the help of paint a durable coating of a matte shade is obtained
- the material is resistant to abrasion,
- chalk paint is universal, as it lies on many surfaces: metal, wood, stone or glass,
- the applied layer helps to eliminate visible defects on the surface of objects,
- the paint dries quickly
- the material is environmentally friendly, it does not emit toxic substances into the air,
- the coating is fireproof
- it is slate and textured (on the slate it is possible to draw, and the textured looks embossed and serves more often for the decor of external surfaces),
- all paints are made on a water basis with the addition of various components (oil, resin, milk, etc.).
REFERENCE! The first original chalk paint was released in 1990 by Chalk Paint. And until now there is no such paint on the market, as the cooking recipe is kept in strict confidence.
5 recipes for making chalk paint at home
You can prepare chalk paint yourself at home. The essence of each method is to add bulk materials to ordinary acrylic paint, giving the coating the desired roughness.
To prepare the coloring composition, you need to prepare in advance a container (not metal), with a volume of at least 2 liters, and a brush.
Baking soda making
This option is one of the simplest and most affordable, as components can be purchased at any store. The cooking process is simple: mix the paint and soda to a homogeneous mass. If the mixture is too thick, it can be diluted with water.
IMPORTANT! To avoid clumping, add soda gradually in small portions.
For a complete surface treatment, the resulting paint is applied in three layers. Get a surface with a rough coating. If you need to achieve a smooth surface, you can sand it.
Corn Starch Making
Starch is also easy to find on grocery store shelves. The price of the product is low. The technology for preparing paint does not differ from the previous version. The only caveat - you need more water to get the optimal consistency.
To completely paint the surface, just applying two layers. Such surfaces also need to be sanded, because after drying, smears and grains of starch will be clearly visible.
Calcium Carbonate Manufacture
A kilogram of calcium carbonate powder costs more than 200 rubles, so the paint based on it will be expensive. But this composition is considered the best: after drying, a smooth texture that does not require grinding is immediately formed.
Two layers are enough to fully cover the subject. Chalk paint based on calcium carbonate is suitable for furniture and interior decoration.
To prepare the mixture, carbonate and paint are mixed. But at the same time strong thickening should not be allowed - the composition should easily lie on the details. 0.5 kg of calcium is enough per liter of paint.
This composition is characterized by an optimal price-quality ratio. Gypsum (alabaster) is cheaper than calcium carbonate, but it gives a smooth coating after a two-layer application. The cooking method is the same. It is important to ensure that gypsum is less than paint. Otherwise, grains will remain on the surface, it will need to be ground.
ATTENTION! Gypsum dries quickly, so the mixture is used immediately after cooking.
Spray chalk paint
Chalk paint is available in the form of a spray. It is easily washed off the surface with a soapy solution. Aerosol allows you to apply the composition without fear that it will leak or smear.
The color scheme includes more than 10 shades, there are neon colors. The composition freezes at temperatures below 24 degrees Celsius.
Aerosols are most often used:
- car painting - this can be done for any celebration, it is also often painted in this way for a car rented,
- temporary graffiti - makes it possible to change the appearance of houses and cars at least every day,
- drawing warning labels - such aerosols are often used by StopHam activists and other similar movements.
We should also say about advertising labels: they look bright and attractive, but you can change them by mood.
Chalk paint of Daria Geiler
Daria Geiler's studio produces not only chalk paints, but also tools for carrying out the procedure, as well as various starting and finishing coatings.
The studio has its own online store where you can place your order and get free delivery in Moscow. Paints have original names. For example, “Oh, Gregory” or “Farewell, Seryozha”.
Available in volumes from 80 ml to one liter. The color palette is huge: dozens of shades for every taste.
The coloring compounds are non-toxic, they have almost no smell, all components are natural.