Coating function and environmental protection balance are the most important

Some people say that the expenditure of paint (commonly known as paint) only accounts for about 5% of the total renovation cost, but it accounts for 80% of the entire renovation area, and 100% determines the overall decoration effect and the living environment, which directly affects the health of the family. The importance of the paint is evident from this point of view. However, when it comes to the selection of various products on the market, how to choose will be a professional-like problem. More and more coatings are made by chemical synthesis, and the types of coatings and the occasions in which they are used are also growing. Here we will introduce the most commonly used interior latex paint for home improvement, and let's take a look.

Functional articles

The choice of wall paint is becoming more and more important to consumers in modern home decoration. Consumers are also paying more and more attention to the basic quality requirements of moisture-proof, crack-proof, and scrub-resistance when choosing wall paint products. Wall paint more functional role.

Performance

(1) Scrub resistance: Indicates the ability of a wall paint to withstand repeated scrubbing during use. The national standard is that the qualified products shall not be less than 100 times, and the quality of the high-quality latex paint products shall be able to reach more than 2,000 times.

(2) Covering power: It means that a certain amount of paint can cover the difference in color and color on the substrate. The stronger the hiding power is, the higher the solid content is, indicating that the finishing effect is good and the dosage is saved.

(3) Adhesion: Reflects the firmness of the paint film attached to the wall. Latex paints with strong adhesion will rarely show wall peeling or peeling.

(4) Resistant to 5% NaOH: The indicator of the stability of the interior wall paint. Because the wall material is mostly alkaline, it has a destructive effect on the paint film, and the durability of alkali resistance determines the durability.

Select different types of paint according to room function

When purchasing, choose latex paint according to the function of the room. For example, in the bedroom and living room walls, paints with strong adhesion, exquisite texture, resistance to chalking, and anti-snoring properties should be used; kitchens and bathrooms are suitable for use. Waterproof, mildewproof, easy to wash and other properties of latex paint; and the balcony due to frequent exposure to sunlight and wind and rain baptism, ordinary latex paint is easier to fall off and fade, so you should use professional weather paint. For example, Qianxinhua's recently listed high-tech special wall finishes are versatile and suitable for a variety of environmental functions. In addition to conventional adhesion, hiding power, acid and alkali resistance, and resistance to scrubbing, they also have cool winter and cool summers. The shrinking effect of lotus leaf and hardness exceeds the hardness, and the brushing area is more than twice as large as that of ordinary products. It is known as the “paint king”.

Different wall bases require different paint properties

Taking into account the paint itself, hiding power, adhesion and other properties, for different wall base should also choose different coatings. Such as concrete and cement base layer, the paint is required to have good alkali-proof coverage, optional latex paint, scrub-resistant interior wall paint, colorful pattern paint, etc.; for lime and plaster wall surface, do not choose imitation porcelain paint, etc.; Non-alkaline coatings should be used on the base layer.

Small size should consider expanding the visual space

If the gloss effect, latex paint is divided into matt, matt, semi-light, mercerized, glossy latex paint. Considering that small and medium-sized houses have gradually become the mainstream of urban residential consumption, people hope to expand the spatial sense of living rooms as much as possible while pursuing the decoration of their homes.

Environmental protection

Oil paints are diluted with organic solvents, while water paints are diluted with water, so waterborne paints have less solvent toxicity problems. According to experts from the Chinese Coatings Association, due to the use of water as a solvent for paint, latex paint is the most secure material in many paints.

Environmental protection indicators

Not all latex paints are 100% non-toxic and harmful. Possible harmful substances in latex paints include:

(1) Formaldehyde: Formaldehyde can cause eye irritation, throat irritation, skin irritation, and even asthma.

(2) Other organic solvents: including methylene chloride, chloroform, benzene, toluene, etc., can cause harm to human body.

(3) Heavy metals: including lead, cadmium, chromium, mercury, etc., harmful to the nervous system, cardiovascular and genetic.

Therefore, when choosing a latex paint, choose environmentally friendly latex paint as much as possible.

Absolute environmental protection may not be good

"The paint product that absolutely does not contain benzene and guarantees the brushing effect is almost non-existent." Experts believe that the benzene-free products claimed by some brands actually refer to the addition of benzene and benzene series additives to the production process, but the benzene and benzene series contained in the production raw materials will still be present in certain proportions. Despite being called the “four killers” of indoor environments with formaldehyde, helium, and gamma rays, benzene series are indispensable ingredients in various paint coatings, paint coating additives, and thinners. In fact, the national standard “Restriction of harmful substances in interior decoration materials for interior wall coatings” is stipulated in this regard. For interior wall latex paint, VOC should be less than 200g/L, and free formaldehyde content should be less than 0.1g/kg. As long as it meets the standards, it is not necessary to place too much emphasis on environmental protection.

The existence of oil paint is reasonable

“The relation between oil paint and water-based paint is similar to CRT TV and LCD TV. Although the LCD is light and non-radiative, CRT is obviously better in color reproduction and brightness and other image effects!” said industry experts, although the oil paint is poisonous, it is more mature after all. However, waterborne paints are not as good as oil paints in terms of drying time, hardness, plumpness and other properties and technically, resulting in increased construction costs and high overall cost. Consumers are still willing to choose oil paints, which is in line with China's national conditions. "In China's current consumer market, although there are some high consumers, most of them are still low consumers, and this determines that there is a market for oil paints."

How to buy a latex paint

A look: Outer packaging and environmental protection test report General latex paint will be marked on the front of the name, trademark, net content, composition, use and precautions. Pay attention to the production date and shelf life, each brand of latex paint marked the shelf life of 1 year to 5 years, as far as possible to buy recently produced products. Now general brand latex paints have environmental testing reports or test sheets. Consumers can clearly see that the test sheet can have a detailed understanding of the environmental performance of latex paint. The test report has standards for the detection of free formaldehyde and heavy metal content. The national standard free formaldehyde cannot exceed 0.1 grams per kilogram.

II: In general, the quality of latex paint, a bucket of 5 liters is about 7 kilograms; a bucket of 18 liters is about 25 kilograms. There is also a simple way to lift the paint buckets. The normal brand latex paint shakes and generally cannot hear the sound. If the sound is easily shaken, it proves that the latex paint has insufficient viscosity.

Three Hands: Open Can Testing High-quality latex paint is more viscous, milky white liquid, no hard block, uniform after mixing, no odor. Otherwise, there is a quality problem with latex paint. In addition, it can also spread evenly on the fingers. If the conjunctiva is dried within a few minutes, and the conjunctiva has a certain degree of ductility, it is a reliable coating.

Paints Buying paints Latex paints Formaldehyde TVs Furnishings Living room walls Colours decoration Living room decoration Home bedroom Decoration Home