What are water based paints and solvent based coatings

The difference between water-based paints and solvent-based paints can be stated from the following perspectives:

a.Coating systems are different.

1.Different resins, the resins of water-based coatings are water-soluble and can be dispersed (dissolved) in water;

2.The diluent (solvent) is different, the water-based paint can be added with Diwater (deionized water) in any proportion, and the solvent-based paint can only be diluted with organic solvents (xylene, butyl acetate, banana water, etc.).

b.Paint application requirements are different.

1.For the construction environment, the freezing point of water is 0, so water-based coatings cannot be applied below 5, while solvent-based coatings can be applied above -5, but the drying speed will slow down, and the inter-channel interval will be lengthened;

2.For the construction viscosity, the viscosity reduction effect of water is poor, and the water-based coating will be relatively troublesome when thinning and reducing viscosity (the viscosity reduction will greatly reduce the solid content of the coating working fluid, affect the hiding power of the coating, and increase the number of construction lanes), and it is more convenient to adjust the viscosity of solvent-based coatings, and the viscosity limitation will also affect the choice of construction mode;

3.For drying and curing, water-based paint is more squeamish, the humidity is high and the temperature is low, it can not be cured well, and the drying time is extended, but if the temperature is heated up, the water-based paint also needs to be heated gradually, and it will instantly enter the high-temperature environment. In solvent-based coatings, the diluent is composed of organic solvents with different boiling points, and there are multiple volatile gradients, and similar phenomena will not occur after flash evaporation (the drying period from the end of construction to the drying period before entering the oven) and entering the high temperature area.

There are two main types of coatings on the market, water-based coatings and solvent-based coatings.

1.Let's start with the composition and environmental protection

The main variety of water-based architectural coatings is latex paint. Latex paint is mainly composed of four parts: water, emulsion, pigment and filler and various additives; The composition of solvent-based coatings is composed of four parts: resin, pigments and fillers, solvents and various additives. It can be seen from this:

The dispersion medium of water-based paint is water, and after the coating is applied, water and a small amount of additives are volatilized from the coating film, which has environmental protection, safety and other properties; The dispersion medium of solvent-based coatings is organic solvent (generally referred to as VOC), and the organic solvents volatilized from the coating film are mostly toxic and harmful substances, which not only cause harm to the human body, but also cause pollution to the natural environment.

2.In terms of the physical and chemical properties of the coating film:

Some physical and chemical properties of water-based coatings are not as good as those of solvent-based coatings, such as chemical resistance, weather resistance, stain resistance, etc. As a result, water-based paints do not last as long as solvent-based paints. But there are also some high-end products for water-based coatings:

For example, water-based silicon acrylic coatings, fluorocarbon coatings, etc., the service life can also reach about l0-l5 years.

3.From the perspective of the construction environment:

In the construction environment, the construction of water-based coatings generally requires more than 5 construction, and solvent-based coatings can also be constructed in O, so in the northern region, solvent-based coatings can be used for construction near winter.

4.In terms of the requirements for the grassroots:

The moisture content of the base layer of water-based coating construction should be less than L0, and the moisture content of the base layer of solvent-based coating construction should be less than 8. The air permeability of water-based coatings is relatively good, and the water vapor inside the base layer can be diffused outward; However, solvent-based coatings are dense in film-forming, and if the moisture content of the base layer is high, water vapor cannot be volatilized from the coating film and is easy to blister.

From the above, it can be seen that water-based coatings have more advantages in environmental protection than solvent-based coatings, but in terms of physical and construction environment, water-based coatings are inferior to solvent-based coatings. As far as the current development trend of the domestic coating market is concerned, water-based coatings have the advantage of long-term development and are more in line with sustainable development.

Summary. Hello dear, I am happy to answer for you, the difference between water-based paint and solvent-based paint is: 1. The composition of the two is different, if you use solvent-based, its main component is resin, as well as solvent, including a combination of various additives.

The main ingredient of water-based is latex paint, and there are some other additives, or water emulsions, etc., so the components will be different. 2. The application environment of the two is also different, if the former is used, basically the temperature range must reach more than 0 degrees to be able to construct, and the latter can be constructed as long as it reaches more than 5 degrees. If it is an area with cold weather, it is best to use solvent-based ones in winter, and the latter has better air permeability, solvent-based ones can form a film, which cannot be volatilized and is easy to blister.

Hello dear, I am happy to answer for you, the difference between water-based paint and solvent-based paint is: 1. The composition of the two is different, if you use solvent-based, its main component is resin, as well as solvent, including a combination of various additives. The main ingredient of water-based is latex paint, and there are some other additives, or water emulsions, etc., so the components will be different.

2. The application environment of the two is also different, if the former is used, basically the temperature range must reach more than 0 degrees to be able to construct, and the latter can be constructed as long as it reaches more than 5 degrees. If it is an area with cold weather, it is best to make Bu Zaoli use solvent-based in winter, and the latter type has better air permeability, and the solvent fan type can form a thin film, which cannot be volatilized and is easy to blister.

3. In addition, there is a point of the old, that is, the performance is not the same, if in terms of coating effect, the latter is slightly weaker than the former, but its weather resistance and service life are more troublesome and long-lasting.

1. Different restrictions on use: water-based paint construction can only be constructed when it is more than 5; Soluble paints can also be applied in o. 2. Different uses:

Soluble coatings are mainly used in construction sites; Water-based Peizhou coatings are mainly used in the decoration of home walls. 3. The scope of application is different: soluble shielding coatings are generally used in the decoration of exterior walls; Water-based paints are generally used in the painting of interior walls.

Solvent-based coatings are coatings made with organic solvents as dispersion media. Although solvent-based coatings have problems such as polluting the environment, wasting energy and high cost, solvent-based coatings still have a certain range of applications and their own obvious advantages. First of all, from the perspective of performance comparison, solvent-based coatings still have a great advantage.

Coating solvents mainly include three categories of products, the first is hydrocarbon solvents, which are graded according to different boiling points; The second category, which is also the most widely used and most mainstream, is oxygenated solvents; The third category is the most unique solvent – water.

There are three types of water-based coatings: water-soluble paints, water-dilution paints, and water-dispersible paints (latex coatings). Water-soluble coatings are water-soluble resins as film-formers, represented by polyvinyl alcohol and its various modifiers, in addition to water-soluble alkyd resins, water-soluble epoxy resins and inorganic polymer water-based resins.

All coatings that use water as a solvent or as a dispersion medium can be called water-based coatings. Water-based coatings are divided into two main categories according to the binder category in coatings: natural water-based coatings with natural substances or minerals (e.g., potassium silicate) and petrochemical water-based coatings with synthetic resins (e.g., acrylic resins).