Introduction to the construction method and technical requirements of epoxy zinc-rich primer
Release Time:
2022-10-20
In most industrial anti-corrosion projects, epoxy zinc-rich primers have always been favored by customers. The reason is its unique cathodic protection function, which can meet the anti-corrosion requirements of different occasions. Moreover, it is not easy to generate bubbles during the coating process, and the anti-corrosion effect is good. So, what should be paid attention to during the construction of epoxy zinc-rich primer? Today, I will share with you the construction methods, technical requirements and characteristics.
In most industrial anti-corrosion projects, Epoxy zinc-rich primer has always been favored by customers. The reason is its unique cathodic protection function, which can meet the anti-corrosion requirements of different occasions. Moreover, it is not easy to produce bubbles during the coating process, and the anti-corrosion effect is good. So, what should be paid attention to during the construction of epoxy zinc-rich primer? Today, I will share with you the construction methods, technical requirements and characteristics.
First, the composition and application of epoxy zinc-rich primer are introduced. Here is a direct quote: Epoxy zinc-rich primer is one of the most widely used coatings in industrial anti-corrosion projects due to its outstanding performance in corrosion resistance, adhesion, mechanical properties, and other aspects. It is a two-component zinc-rich primer. It is a coating made of epoxy resin and zinc powder as the main raw materials, supplemented by anti-rust pigments, additives, thickeners, fillers, solvents, etc. It is widely used in bridges, metals, steel structures, light industrial machinery, power equipment, marine engineering equipment, chemical equipment, containers, ships, storage tanks, bridges and other scenarios.
Its performance has the following points: It greatly enhances the anti-corrosion ability and effectively protects the base material. It has cathodic protection, shielding and corrosion inhibition effects. Excellent oil resistance, water resistance and solvent resistance. When cutting the coating with electric welding, it will not affect the welding quality. Due to its strong adhesion, the coating for steel structures does not fall off.
In Epoxy zinc-rich primer the construction of , it should be noted that in order to give full play to the excellent coating effect of the product, the substrate must be well treated before coating, and spraying, air spraying or airless spraying should be used. Painting can be used to repair small areas. The rolling method is generally not recommended. After the surface treatment is qualified, painting should be started immediately. Generally speaking, the coating interval between the primer and the intermediate paint is about 16-24 hours. If the coating period is exceeded, it should be polished and cleaned to effectively remove the powder and zinc salt on the surface of the zinc-rich primer.
There are two popular polishing standards on the market, manual polishing and electric polishing. The high standards of both are ST3 and SA2.5 respectively. Because the polishing of the substrate is directly related to the product performance of the coating, the substrate needs to be polished before coating. This is the technical requirement of epoxy zinc-rich primer.
In most industrial anti-corrosion engineering projects, epoxy zinc-rich primer has always been favored by customers. The reason is that its unique cathodic protection effect can meet the anti-corrosion needs in different situations. Moreover, it is not easy to produce bubbles during the coating process and has a good anti-corrosion effect.
The above is what I want to introduce to you Epoxy zinc-rich primer the composition, characteristics, application, technical requirements and construction methods of .
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