Epoxy anticorrosive coating construction
1. Construction preparation.
1.Substrate treatment: First of all, the surface of the steel structure needs to be polished to remove impurities such as dirt, rust and grease on the surface to ensure the adhesion of the coating.
2.Coating selection: choose the appropriate epoxy anticorrosive coating according to the use environment, weather resistance, anti-corrosion requirements and other factors.
3.Construction temperature: The construction temperature should be controlled above 5, and the humidity should be less than 85%.
4.Construction equipment: Prepare the necessary paint application tools such as agitators, brushes, rollers, etc.
Second, the construction steps.
1.Stirring the coating: Add the curing agent to the paint in the proportion required by the manual, and use a stirrer to stir well until it is uniform.
2.Substrate preheating: Before painting, the substrate is preheated to improve the drying speed and adhesion of the coating.
3.Coating the first primer: The first primer is applied to the surface of the substrate, and the uniformity and wetting of the paint should be maintained during the coating to avoid dry spraying and missed coating.
4.Dry curing: Wait for the primer to dry and cure before applying the next step.
5.Painting the second primer: Apply the second primer on the surface of the first primer, and maintain the uniformity and wetting of the paint during the coating to avoid dry spraying and missing coating.
6.Dry curing: Wait for the second primer to dry and cure before applying the next step.
7.Coating topcoat: Coating topcoat on the surface of the primer, the uniformity and wetting of the paint should be maintained during painting, and dry spraying and missing coatings should be avoided.
8.Dry curing: Wait for the topcoat to dry and cure before proceeding to the next step of painting.
9.Painting Complete: After all the painting steps have been completed, the paint surface needs to be inspected to ensure that there are no defects and blemishes.
3. Precautions.
1.During the construction process, the influence of open flames, static electricity and pollutants on the coating should be avoided.
2.Before painting, the surface of the substrate should be fully treated and cleaned to ensure the adhesion and stability of the coating.
3.In the process of painting, the construction environment should be kept clean and hygienic to avoid the influence of dust and impurities on the coating.
4.After the coating is completed, scratches, friction and other damage to the surface of the paint should be avoided to ensure the integrity and aesthetics of the coating.
5.In the process of use, the ratio and use should be carried out in strict accordance with the requirements of the manual to avoid quality problems.
6.During the construction process, attention should be paid to safety matters to avoid accidents.
Fourth, quality requirements.
1.The quality of the coating should meet the relevant national standards and enterprise requirements to ensure that it has anti-corrosion, wear-resistant, weather-resistant and other properties.
2.The coating quality should be uniform, flat and smooth, without bubbles, leakage, sagging and other phenomena.
3.The thickness of the coating should meet the design requirements and enterprise standards to ensure that it has sufficient anti-corrosion effect and service life.
4.The adhesion of the coating should meet the national standards and enterprise requirements to ensure its stability and durability.