What are the characteristics of polyester paint and how to use it?

Polyester paint, also called unsaturated polyester paint, is a multi-component paint. The main agent is the styrene solution of unsaturated polyester, in addition to the initiator (also known as curing agent, hardener, common name white water) and accelerator (common name blue water), after mixing, the unsaturated double bond in the backbone of unsaturated polyester and the alkene monomer (styrene) as an active solvent are copolymerized by free radical copolymerization and cured into a film. Styrene is both a solvent and a film-forming substance, the volatilization is very small, the solid content is almost 100, and a thick paint film can be obtained.

In this way, the number of brushing can be reduced, the work efficiency can be improved, and the plump and bright paint film can be formed by brushing 1 or 2 coats; At the same time, it also has little pollution to the environment. The comprehensive performance of polyester paint film is excellent, hard and wear-resistant, high richness, resistance to damp heat, dry heat, acid and alkali oil, solvents and a variety of chemicals, and high insulation. The varnish has light color, high transparency and gloss, good gloss and color retention performance, and has good protection and decoration.

The disadvantage is that the preparation is more troublesome, and the ratio of accelerator and initiator is strict. The activation period after the paint is short, and it must be completed within 20-40min, otherwise it will gelatin and be scrapped, so it should be used with the mixture, and the amount with the amount should be used. In addition, its repair performance is also poor, and there are marks after repairing the damaged paint film.

In the painting of wood and piano, people often use polyester paint to paint in the tank, and you need to understand its characteristics before using polyester paint, so what are the characteristics of polyester paint? Today, PCHOUSE will answer them for you one by one.

1. Polyurethane paint film has the characteristics of high mechanical wear resistance and toughness, polyester paint is a non-ring or annular hydrogen bond can be formed between polymer molecules, and under the action of external force, the hydrogen bond can be separated and absorb external energy (20 25kj per mole). When the external force is removed, hydrogen bonds can be formed again. Such a hydrogen bond splits and forms a reversible repeat.

2. The comprehensive performance of the paint film of polyester paint is excellent, because of the use of curing agent, the hardness of the paint film is higher, hard and wear-resistant, the richness is high, and it is resistant to damp heat, dry heat, acid and alkali oil, solvent and multi-bright celery chemicals, and has high insulation.

3. Polyester varnish has light color, high transparency, high gloss, good gloss and color retention performance, good protection and decoration, and can be used for the coating of high-grade wood, piano, large passenger aircraft, etc.

Reading guide] We still have some understanding of paint, and paint is everywhere in our lives. When we walk on the road, we can see the paint of the guardrail, as well as the paint of the bridge; When we are in the park, we can also see the paint of the sports equipment in the park. The following is an introduction to one of the more commonly used paints, that is, polyurethane paint.

polyurethane paint composition

This type of paint consists of resin, which is the main ingredient of the paint, as well as auxiliary materials such as pigments and fillers, and is synthesized by incorporating organic solvents. This paint product has two components, one is the paint itself and the other is the curing agent.

Polyurethane paint properties

For this product, it has very good adhesion, and the paint film after coating is very hard, in addition to the paint has good water resistance and moisture resistance after coating, not only that, it also has good oil resistance and acid resistance. The alkali resistance and salt spray resistance of this variety of paint are also relatively prominent.

Polyurethane paint uses

Through the above introduction, we understand the characteristics of polyurethane paint, and it is these characteristics that make this product very suitable for use in some chemical environments. Like some equipment, or chemical instruments and other fields have applications.

Polyurethane paint construction:

For these two components, we need to use them together in a certain proportion. It needs to be stirred evenly when it is used, and the use time is used up within 6 hours.

When we are carrying out construction, we need to pay attention to the drying and cleaning of tools. The surface of the coated object also needs to be cleaned strictly.

When we are mixing and painting, we must pay attention not to contact with water, acid, alkali, etc.

Construction precautions

1.It should be noted that there should be no fireworks or some fires in the construction site. During construction, it is also necessary to pay attention to maintaining good ventilation.

2.This substance must be stored in some cool and dry places, such as warehouses and other well-ventilated places are better. The time that can be saved is one year.

Introduction to the polyurethane paint brand

For the brands of polyurethane paint, there are many on the market, but relatively good brands such as Qirui or 3Trees are still worth our choice. First of all, the production management of the products of these brands is strict, genuine and cost-effective. Traveler.

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