Water-emulsion paint: technical characteristics, manufacturers, composition
For industrial and artistic painting of walls,ceilings, the floor of the room, furniture in it, as well as window and door structures, paint is most often used on the basis of an aqueous emulsion. Water-based paint, the technical characteristics of which provide a stable and high-quality coating, are highly ecological and do not have a toxic effect on living organisms.
Principles of the formation of the protective composition of water-based paint
The name of water-emulsion (water-dispersive)paint is due to the presence in its aqueous basis of a suspension of pigments, which together form an emulsion. Dispersed elements are not mixed with the aquatic environment, but are created and exist with it in parallel.
Thus, the water-based paint consists of a filler, a thickener, a latex and an antiseptic.
Polymer particles after the drying of water onthe surfaces form an even layered layer. The dry paint is easily removed by hand, and its layer does not have an unpleasant smell. The paint is resistant to mechanical stress, but it is not applied to metal surfaces to avoid corrosion due to the presence of constant moisture.
The main technical characteristics of water-based paint
Water-based paint, technicalthe characteristics of which are viscosity, flow rate, specific gravity and drying time, has stable production parameters, is optimally suited for the treatment of internal surfaces of living quarters.
The degree of dilution of the coloring mass with water is indicated by the viscosity index, measured with a viscometer.
The consumption of emulsion paint is directly dependent onabsorbing capacity of the receiving surface and is from 100 to 200 milliliters per square meter of surface, painted with a layer of paint one millimeter thick.
The specific gravity of the water-based paint is about 1.3 kilograms per liter.
The drying time of the water-based paint dependsfrom humidity and air temperature and ranges from two hours to a day. The optimum drying conditions are considered to be +20 degrees Celsius and 65% humidity.
The shelf life of the emulsion paint depends more on the storage conditions (ideally - a cool dark place) and is on the average 24 months.
Characteristics of water-dispersion paint are fully reflected in the GOST 28196-89 data.
Technical characteristics according to GOST
Water-based paint, technicalThe characteristics (GOST) of which are registered under number 28196-89, is called in it a water-dispersion paint, represented by suspensions of pigments and fillers, enclosed in an aqueous dispersion of synthetic polymers, in which various auxiliary substances such as emulsifier, stabilizer and others have been added.
GOST 28196-89 has replaced obsolete GOST19214-80, GOST 20833-75, TU 6-10-1260-87, TU 6-10-2031-85, TU 6-10-2054-86, TU 6-10-2081-86, dealing with paint and varnish materials. All water-dispersion paints are fireproof, and their production and operation are possible only in the supply and ventilated rooms.
According to GOST, their transportation and storageshould be carried out in sealed containers at a temperature above 0 degrees, but a short-term temperature reduction of -40 degrees within one month is allowed.
Water-based paint, technicalthe characteristics of which are provided by its light-reflecting properties, the light resistance test is carried out at the factory - the experimental section is placed under a special lamp for 24 hours, then for 2 hours in complete darkness, and then compared with expert samples.
Features of the use of water-dispersion paint VEAC
Water-based paint WEAK, technicalwhich characteristics are one of the most necessary for safe and fast work in the space of living quarters, is optimally adapted for house repairs.
It has a white color and a set of additional pigments, with which you can get any desired color.
In each case, the surfaces to be painted mustbe perfectly smooth and dry - in such conditions, the consumption of VACC will be less than 150 grams per square meter. It is excellent to lie down on old and already painted surfaces, because it has a latex base and dries up within 4 hours.
Since WEAK is a water-based acrylic paint,technical characteristics can be diluted with water, but not more than 10 percent of the main volume. Do not use chemical diluents. The properties of the paint make it possible to wash the surfaces painted with warm water, but the instruments should be cleaned immediately after the work is finished.
Under optimal conditions, the painted surface does not lose color and strength for 7 years.
Features of the use of polyvinyl acetate paint
Similar in quality and service life, andAlso, the application mechanism is polyvinyl acetate water-based paint, the technical characteristics of which allow it to be used in painting not only the internal surfaces of the building, but also cardboard, plywood, drywall and wood.
Polyvinyl acetate paint is fireproof, butextremely afraid of temperature differences and high humidity. This water-based paint, the technical characteristics of which allow it to be used for finishing the surface, and thanks to which it completely dries in two hours.
Consumption of polyvinyl acetate emulsion paintis about 200 milliliters per square meter, to fill in the spots you have to put it in several layers. The higher consumption and the specific composition make it more expensive in comparison with other types of paints.
Specific features of water-based paint "Tex"
When choosing the type and firm of the paint and varnish productAlso you should pay attention to the water-based paint "Tex". It is a silicone-modified viscous liquid acrylate base, it has a white gloss, a moderate flow and easy application. For it, a full range of colors is produced.
Water-based paint "Tex", technicalcharacteristics of which allow it to be applied to brick, concrete, wooden surfaces, used for the treatment of walls and ceilings; it forms on the plane a practical matte film that allows air to circulate freely between the thickness of the paint and the surface material. However, the main and obvious drawback of Tex paint is its heat sensitivity - air in the room when using it should be warmer than +5 degrees Celsius.
General principles of care and cleaning of surfaces coated with water-dispersion paint
Any water-based paint is washable;the technical characteristics of this paint allow not only to easily and quickly apply the material on a vertical or horizontal surface with a roller and brush, but also after a long time wipe this surface with a damp cloth.
For cleaning construction tools and clothesfrom such a paint, soap foam is also used (for polyvinyl acetate suspensions); acrylic emulsion paint must first be damaged with a spatula - for greater removal speed, the desired area of the painted surface is first pasted with paper or newspapers, planting them on gelatinous starch or regular wallpaper glue.
It is possible to clean areas of the surface from acrylic paint by using a building hair dryer and a spatula - by burning fragments of the surface and removing them with a blade.
Chemical solvents are also suitable for removing water-based paints, with a gradual destructive effect, but they produce an unpleasant odor and are toxic to the body.
Some recommendations on the use of water-dispersion paints
Before working with water-based paintit is necessary to level, plaster and if necessary zashpatlevat all surfaces. Despite the ecological compatibility of the paint, you still need to prepare for work safety glasses, a respirator and gloves.
The can of paint is shaken, its contentsmixed and diluted with water according to the instructions. On the painted walls, paint is applied in three layers, on wallpaper - in one. The paint is applied in parallel strips from the window to the wall. As tools for application use brushes, rollers, spatulas and spray.