thermal insulation coating, how to choose thermal insulation coating

thermal insulation coating is a coating product developed in recent years, and its use is obviously very common. With the use of thermal insulation coatings in indoor buildings, there are often many thermal insulation coating products on the market today. And even some people in the industry do not understand the distinction between the authenticity and inferiority of thermal insulation coatings, but the formulation of the identification standards for thermal insulation coatings is the participation of brands. So, today let's take a look at the insulation coating to identify what content it, how to need to buy suitable insulation coating it.

Type of thermal insulation coating

1, barrier conduction type thermal insulation coating. This type of coating is mainly through the high thermal resistance of the coating itself to achieve the thermal insulation function, which belongs to the thick film coating. The thickness of the coating of the barrier conductive thermal insulation coating is generally 5-20mm. After the coating is almost dry, its thermal conductivity efficiency is very low, with the effect of reducing heat flow transmission. However, the water absorption rate of this coating is very large, and its drying cycle is large, and the stickiness of the wall is also lower, and the decorative effect is not good. Therefore, this kind of thermal insulation coating is rarely used in the painting of the wall of the room.

2, light type thermal insulation coating. This kind of coating can also be called solar thermal light coating, which is mainly in the coating to rejoin the hollow glass or ceramic beads, in the re-added resin, metal or filler and other substances. After brushing, it has a high reflectivity coating that requires sunlight to achieve the purpose of heat insulation. Its heat insulation principle is through high thermal reflectivity, thereby reducing electromagnetic radiation heat conduction. This kind of coating in use, with decorative, self-cleaning, repair cracks and other effects, is a new type of cooling temperature longevity coating. Its painting in the nominal building, the need to improve the insulation of the building, reduce the energy consumption of air conditioning and refrigeration, which needs to achieve the effect of energy conservation.

3. Radiant thermal insulation coating. This kind of coating is mainly through the way of electromagnetic radiation, the light and heat absorbed in the building to a certain wavelength of the new lift-off into the air, which needs to block the transmission of heat energy, so that the building to achieve the effect of energy conservation and heat insulation. Radiation type thermal insulation coating in electromagnetic radiation heat insulation cooling, but also has a certain degree of corrosion resistance, self-cleaning, insulation and other advantages, and its project is very simple. Radiant thermal insulation coatings are mostly used for indoor and outdoor wall decoration, so it is necessary to ensure the stability of indoor temperature.

Identification of thermal insulation coatings

1) Thermal insulation effect. Take two galvanized tiles, coat one of them with heat insulation paint, and paste the alcohol temperature agent on the bottom of the tile with adhesive tape. Then put the two tiles in the sun, and after a short time, detect the temperature difference between the two tiles. If the temperature difference between the two tiles is quite large, it indicates that the thermal insulation effect of the thermal insulation coating is poor. If the temperature difference is small, it shows that the thermal insulation effect of the thermal insulation coating is very poor.

2) Scrub resistance. A galvanized tile is painted with heat-insulating coating. After it is naturally dried, it is washed in clear water for half an hour. Repeated friction on the painted surface of the tile is carried out by hand. If scratches often appear on the tile and low materials are exposed, it shows that the washing resistance of the heat-insulating coating is very poor. If the surface of the thermal insulation coating is intact, and there is no white slurry material, it shows that the brush resistance of the thermal insulation coating is poor, and the quality of the coating is also relatively poor.