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Waterborne coatings: comprehensive analysis of advantages and disadvantages
Waterborne coatings have gradually become the new favorite of coatings market because of its unique environmental protection characteristics and excellent performance. However, it also has its unique advantages and disadvantages. Let's know each other better.

Environmental protection pioneer

Water-based coatings use water as solvent, which greatly reduces resource consumption, has no fire risk and almost no air pollution. Its organic solvent content is extremely low, which greatly improves the working environment.

Super adaptability

Waterborne coatings can also be easily coated on wet surfaces or wet environments, and have strong adhesion to material surfaces, which can perfectly cover cavities, welds and corners.

Tool cleaning is very convenient.

Spray painting tools can be directly washed with water, which greatly reduces the amount of cleaning solvent.

Excellent protection and corrosion resistance

The electrophoretic coating is uniform and flat, with good leveling and protection. The salt spray resistance of thick film cathodic electrophoretic coatings is extremely high, up to1200 h h.

Require a high degree of cleanliness.

The surface tension of water is large, and dirt can easily lead to film shrinkage.

Speed has a great influence.

Sensitive to the change of flow velocity in conveying pipeline, which may produce coating pitting.

High equipment cost

It is corrosive to coating equipment and requires special anti-corrosion lining or stainless steel material.

Strict environmental requirements

Baking waterborne coatings has strict requirements on the temperature and humidity of the construction environment, which requires additional equipment and increases energy consumption.

High energy consumption

The latent heat of evaporation of water is large, and the energy consumption during baking is large.

Oil fume problem

Some organic cosolvents will produce lampblack during baking, which will affect the appearance of the film.