What are the advantages and disadvantages of water based paint? Advantages and disadvantages of wate

The disadvantages of water-based paint are:

1. Water-based paint has high requirements for the cleanliness of the material surface in the construction process, if the cleaning of the material surface is not in place, it is easy to cause shrinkage holes on the coating film of water-based paint.

2. The stability of dispersion of water-based paint is very poor when resisting mechanical force, if the flow rate in the conveying pipeline changes greatly, the dispersed particles in the water-based paint will become solid particles, resulting in pitting of the coating film of water-based paint.

3. Water-based paint has great corrosiveness to coating equipment, and water-based paint also has strong corrosiveness to transportation pipelines.

Advantages: 1. It has good anti-rust and anti-corrosion, not easy to be infiltrated and oxidized by water, and can be used on the surface of some metal, wood and other objects.

2. Taking water-based industrial paint as an example, the color is beautiful, the gloss is good, the paint film is full, the high solidity and low viscosity are improved, the thickness of the spraying film is improved, and the advanced modified resin is used to strengthen the protection and appearance decoration of the workpiece

Water-based paint has high requirements for the cleanliness of the construction process and the surface of the material, because the surface tension of the water is large, and the dirt is easy to make the coating film shrink holes, but these can now be solved by adjusting the formula, and the baking water-based paint has higher requirements for the construction environmental conditions.

Advantages of water-based paints.

First of all, water-based paint uses water as the solvent, which saves a lot of resources and greatly reduces the fire hazard during construction; Air pollution is also greatly reduced. A small amount of low-toxicity alcohol ether organic solvent is used to improve the working environmental conditions. The organic solvent of general water-based coatings is between 15% and 15%, but now the cathode electrophoretic coating has been reduced to the following, and the effect of reducing pollution and saving resources is obvious.

Secondly, water-based coatings can be directly coated on wet surfaces and humid environments, which does not require high dryness on the surface of the material, and the coating adhesion is very strong. The coating tool can then be cleaned with water, and the consumption of cleaning solvent is greatly reduced. Finally, the electrophoretic coating film is uniform, flat, and has good flattening, and all parts can be coated with a certain thickness of the coating film, which has good protection.

Electrophoretic coatings are highly corrosion-resistant.

Disadvantages of water-based paints.

First of all, water-based coatings have high requirements for the cleanliness of the construction process and the surface of the material, because the surface tension of the water is large, and the dirt is easy to cause shrinkage porosity in the coating film. Secondly, the dispersion stability of water-based coatings against strong mechanical force is poor, and when the flow rate in the conveying pipeline changes sharply, the dispersed particles are compressed into solid particles, which makes the coating film pitted. The shape of the conveying pipeline is required to be good, and the pipe wall is free of defects.

Thirdly, water-based coatings are highly corrosive to coating equipment, so anti-corrosion lining or stainless steel materials need to be used, and the equipment cost is high. The corrosion of water-based coatings on the transportation pipeline, the dissolution of metals, the precipitation of dispersed particles, and the pitting of the coating film, also need to use stainless steel pipes. Then, the baking water-based coating has strict requirements for the construction environmental conditions, which increases the investment in temperature and humidity control equipment, and also increases the energy consumption.

Finally, the latent heat of water evaporation is large, and the baking energy consumption is large. Cathode electrophoresis paint needs to be baked at 180 °C; Latex paints, on the other hand, take a long time to dry completely. Organic co-solvents with high boiling points produce a lot of oil smoke during baking, which drops on the surface of the coating film after condensation and affects the appearance.

Is water-based paint environmentally friendly?

Water-based paint has the characteristics of strong environmental protection, fast drying, not afraid of water, and high hardness. Water-based paint is mainly water as a very important thinner, and the important substance of water-based paint is a film-forming substance, which is soluble in water, and does not contain benzene, formaldehyde and other heavy metal substances, and has tasteless, non-flammable, non-yellowing, etc.

If mine is helpful to you, please be prompt! Your recognition is the biggest motivation for me to answer the questions! It's easy to ask questions, it's not easy to type, and ask and cherish! Thank you!

Advantages: The biological toxicity is lower than that of oily solvents, which is more convenient to clean.

Disadvantages: Relatively poor adhesion.

It is mainly used when a variety of colors are needed in a certain color block area, in order to avoid the oily solvents from colleging with each other, one layer of water and one layer of oil are used.

<> advantages of water-based paint: 1. Reduce risk and protect the environment: water-based paint is used as a solvent, which greatly reduces the probability of fire during construction, and this material also reduces air pollution, and also improves the working environment of workers.

It plays a very important role in green construction. 2. Shorten the working hours: water-based paint can be directly constructed in a humid environment to shorten the construction time.

In addition, the painting tool can be cleaned directly with water, which is convenient and fast. Disadvantages of water-based paint: 1. It is easy to produce stains

Because the tension of water is relatively large, contaminants are easy to cause shrinkage porosity in the coating film. 2. Poor stability: If the water-based paint encounters a strong external force, its own stability is poor, and the requirements for the transportation pipeline are also relatively high, and the pipeline without defects is needed for transportation.

In general, water-based paints can be selected for application in a dry and stain-free environment.