Asphalt paint is a kind of coating composed of coal tar asphalt and coal tar as the main raw materials, adding thinners, modifiers, driers and other organic solvents. It has excellent water resistance, anti-corrosion and chemical resistance, and is suitable for high temperature, humidity, chemical, air pollution and seaside salinity and other corrosion-prone environments. Here's how to use asphalt paint:
Steel surface treatment: Before using asphalt paint, the surface of the steel that needs to be painted needs to be treated. First, the oil stain is removed, and then the rust on the surface of the steel is removed by sandblasting and other methods, and the impurities are removed after treatment. Only by treating the steel surface can the adhesion and anti-corrosion effect of asphalt paint be guaranteed.
Mixing the paint: Before using asphalt paint, the paint needs to be thoroughly stirred until the bottom of the barrel is free of deposits. In the mixing process, it is necessary to ensure that the paint and curing agent are mixed in strict accordance with the ratio of the certificate, and ensure that the mixing is uniform.
Pay attention to the construction environment: During the painting process, you need to pay attention to the changes in weather and temperature, because the ratio of paint will be affected by the surrounding environment and climate. Only at the right temperature can asphalt paint exert its properties, thus greatly increasing the service life.
Construction method: Asphalt paint can be applied by roller coating or spraying. When rolling, it is necessary to ensure that the coating is uniform, and the number of brushes can be adjusted according to the coating requirements. When spraying, it is necessary to control the distance and angle of the spray gun to ensure that the coating is uniform.
Coating curing: After the application is completed, the coating needs to be cured. During the curing period, it is necessary to ensure that the coating is not harmed by water, dust and other pollutants to ensure the normal curing and anti-corrosion effect of the coating.
Paint use time: Mixed asphalt paint is recommended to be used on the same day. Because the coating changes when exposed to carbon dioxide over time, a layer of paint film may form on the surface, which will affect the performance of the coating.