At what temperature can the first 6 frost-resistant compounds be painted?
It is customary to schedule painting at the beginning of the warm season. The strength of the finish depends on the air temperature and the temperature to which the surface to be painted is heated. What temperature should be inside or outside, how quickly can you paint - these questions often arise during repair and construction work.
General temperature requirements for painting
For each type of paint and varnish products, certain conditions are provided. Compliance with the conditions allows you to count on obtaining strong adhesion of the compounds to the surface.
Reference! Oil paints dry the longest. The drying period lasts from 4 to 6 days.
Primer
Primer can be used in sub-zero temperatures. This composition should not produce a decorative effect, it acts as a connecting link, repairs defects, creates a strong film for further processing.The primer is applied to the exterior walls at temperatures from -10 to +20 degrees. Special primers designed to work in harsh conditions do not lose their qualities at -35 degrees.
Facade painting
The facade often has to be painted in winter. To avoid damage to the surface, a special type of frost-resistant paint is used. A prerequisite for painting facades is high-quality cleaning. All irregularities and notches must be repaired in advance. A layer of the coloring composition will fit well on a dry surface sealed with soil.
Painting on brick
The brick should not be covered with a layer of paint immediately after the completion of the masonry. Small particles that begin to flake off the coating will cause the entire layer to crack. It is recommended to take a break after the end of the pose. The minimum duration is 12 months. The brick must be carefully primed with a special compound using rollers and spatulas. On the floor, the finishing coat will be easy to apply.
Working concrete in winter
To paint a concrete surface, it must withstand a year after concreting. The dust that separates from the backfill must be removed. It is not recommended to cover the concrete surface with paint in winter. If necessary, the cleaned surface is painted with frost-resistant paint in one layer.
Painting metal in winter
Metal can be painted with thermal compounds with special markings. At low temperatures, the iron does not release excess moisture, so the composition fits well on a flat surface. Before painting, the metal is cleaned of traces of rust and various irregularities. The next step in cleaning is degreasing.Then the metal area is rinsed with clear water and left to dry. Large areas are covered with a roller, small areas are painted with a brush.
Painting wooden surfaces
Wooden surfaces should not be painted in winter. Drops of moisture accumulate between the fibers of the tree, they freeze in the cold and become watery when warmed. The layer made in winter with the onset of heat will be fragile and cracked.
The condition for creating a strong grip is good warm weather not lower than +10 degrees. To facilitate the adhesion process, the surface can be warmed from the inside with a mounting hair dryer or exposed to the sun.
At what temperature does paint dry best?
When planning to paint exterior surfaces, choose an appropriate weather. Unfavorable temperatures are considered indicators from -5 to +5 degrees. This range is characterized by the presence of cold, heavy air and high humidity.
The basis of drying is not the air temperature, but the state of the air masses. Paints will dry faster in hot weather when the air mass fluctuates. The process can be accelerated artificially. To do this, use a hair dryer with a special assembly with a temperature of +60 degrees. One of the options to activate drying is to use a heat gun. It is installed at a sufficient distance from the surface to be treated and turned on for some time. Another option to speed up drying is to use an infrared heater.
The use of frost-resistant coloring compositions
Frost-resistant compounds are used if there is no way to wait for the onset of heat.Cold repair is complicated not only by the choice of composition for covering the surface, but also by the choice of special tools, protective suits and ways to keep warm.
Frost resistant formulations provide a durable top coat when applied to surfaces at normal room temperatures. Heat resistance and frost resistance are manifested if the layers are applied correctly, in accordance with the requirements.
Enamel KO-870
It is a heat resistant enamel designed for painting metal surfaces at low temperatures.
Primer-enamel "SpecCor"
Polyurethane enamel, intended for painting iron, concrete, special multicomponent equipment, is tinted with special pastes. The type of finish of the coating gives a semi-matte surface.
Organosilicate composition OS-12-03
The paint is intended for painting facades and metal structures.
Frontal Enamel KO-174
The paint is intended for application on metal surfaces. It belongs to the group of organosilicon agents.
Enamel ХВ-785
The composition is made on the basis of polyvinyl chloride resin, intended for coating iron, concrete, metal.
Enamel ХВ-124
Enamel is characterized as a chemically resistant type for staining metal.
At what temperature can spray paint be applied
Sprays are used for painting cars or for finishing small surfaces. The boxes are designed for use at temperatures from +10 to +25 degrees. These are optimum temperature values when the applied layer can provide strong adhesion and will not cause cracking.
Conditions for creating an even coating when using a ball:
| State | The description | Features |
| Temperature | +10 to +20 degrees | If the temperature drops below the minimum value, the finish will crack, not creating an even coating |
| Humidity | About 65 percent | High humidity will create an uneven, bumpy coat |
| Application distance and angle | At a distance of 15 centimeters at right angles | Closer application is dangerous by creating an uneven layer |
Attention! Before using the ball, shake it for 3-4 minutes. The pigments settle to the bottom, so it's important to make sure they're mixed with the base stock.
Additional tips and tricks
To choose a heat-resistant composition, you should pay attention to the quality characteristics of the surface to be treated. Additionally, you need to consider the result you expect to achieve. Heat-resistant formulations should not be expected to offer a varied palette.
Tips and tricks:
- Compositions of red, black, brown and graphite shades have increased heat resistance.
- The optimum temperature range for working with heat-resistant compounds: from +5 to +30 degrees.
- The bond strength depends on how the surface is treated. Some formulations require the prior application of a primer, for others it is important to use a degreaser.
- Creating an optimal layer of heat-resistant composition depends on the type of surface to be painted. Coats can create finishes ranging from 15 microns to 150 microns.
To apply the next layer, you must wait until the previous layer has dried. The approximate drying time is indicated on the packaging of the composition. Technologists themselves advise adding a margin of 10 minutes to this indicator.
Do not work outdoors in the rain or snow. Weather events will not contribute to a smooth finish. If the air temperature has dropped, do not use aerosol cans. The spray hole is clogged with pigment particles and cannot provide an even coat.