The difference between water-based paint and solvent-based paint!

It is still very good to use solvent-based paint when decorating.

What does solvent-based paint mean?

Solvent-based coatings are actually what we call solvent-based.

First of all, from the perspective of performance comparison, solvent-based coatings still have a great advantage

A.

During the period 1930-1940, alkyd resin was the main binder for coatings.

The main disadvantages of alkyd resins are rather poor baking color retention, limited outdoor durability, and it is difficult to achieve extremely high solids content in solvent-based alkyd resin coatings

B.

Polyester resin is mainly used to replace the alkyd resin in melamine formaldehyde resin (MF) cross-linked baking enamel, and it is also widely used in polyurethane coatings

C.

The main advantages of acrylic resin as the base material of the paint are fairly moderate price, light color, color retention, embrittlement resistance and excellent outdoor durability

The difference between water-based paint and solvent-based paint

1.

The main varieties of water-based coatings are latex paints, which are mainly composed of water, emulsion, pigments and fillers and various additives; while solvent-based coatings are composed of resin, pigments and fillers, solvents and various additives.

2.

In terms of the physical and chemical properties of the coating film, some of the physical and chemical properties of water-based coatings are inferior to those of solvent-based coatings, such as chemical resistance, weather resistance, and stain resistance.

3.
Application environment

In the construction environment, water-based coatings generally require construction above 5°C, and solvent-based coatings can also be constructed at 0°C.
Therefore, in northern areas, solvent-based coatings can be used for construction near winter
.
In terms of the requirements for the base layer, the water content of the base layer of water-based paint construction should be less than 10%, and the water content of the base layer of solvent-based paint 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 diffuse outward; Solvent-based coatings form a dense film.
If the water content of the base layer is high, water vapor cannot evaporate from the coating film, and it is easy to foam
.

The above is an introduction to the meaning of solvent-based coatings and the difference between water-based coatings and solvent-based coatings.
The content is for your reference only, and I hope it can be helpful to everyone
.