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Powder coatings (powder paint) are a group of coatings that are obtained from a mixture of resin, cross-linking agent, pigments and other additives. To produce these coatings, first the raw materials are melted with They are mixed with each other, then the resulting melt is cooled, and in two stages, they are transformed into particles with a size between ten and one hundred microns.
These coatings entered the market for the first time in the 1950s as new coatings and their production expanded day by day. These coatings are mainly applied using electrostatic methods.
Electrostatic powder paint consists of fine and dry particles of resin plus the pigment of your choice. Resin powder is applied through a spray gun, similar to a liquid paint spray gun, with the difference that the spray gun and resin particles contain an electrostatic charge. When the resin particles are sprayed onto the workpiece, the particles stick to the metal surface. This is because the workpiece is attached to the ground and attracts particles like a magnet. The particles attached to the metal surface are baked in special industrial ovens up to 200 degrees Celsius. The molten resin is fused on the surface of the metal and creates a uniform, thick and resistant surface. The result is a beautiful and shiny surface with excellent resistance to chemicals, scratches and peeling and three times more resistant than solvent-based paints. Solvent-based liquid paint can be affected by weather conditions such as temperature and humidity, and the result is lower quality work, smoothing or orange peel surface. In addition to weather conditions, the painter’s skill will also have a direct effect on quality. Since the powder paint adheres to the workpiece through electrostatic impregnation, it is possible to obtain a one-hand and high-quality surface in any weather condition.
Furnace paint is a coating that is made in the form of powder, and after being sprayed by a special device, it is subjected to heat for a specified period of time and at a specified temperature, it is melted and hardened, and after cooling, a very resistant and high-quality insulation is obtained. comes, the baking time and temperature of powder colors are also different and should be according to the instructions of the manufacturer, which is usually 10 to 18 minutes, and the temperature varies from 185 to 230 degrees Celsius, and in light colors, low temperature with high time (to avoid yellow and dark colors require high temperature and low time.