What are the requirements for indoor latex paint?

Regardless of the new house or the old house, as long as the wall scrapes the putty, it must be shoveled clean and then rolled with glue, generally diluted with 502 glue or woodworking glue, and directly rolled with a roller. It is recommended to use woodworking glue to roll, which has high strength and is more environmentally friendly than 502. Then it is to scrape the putty two or three times, mainly depending on the flatness of the original wall.

The topcoat is generally brushed twice, and some high-grade latex paints have a special matching primer, and the topcoat will save a lot if the primer is brushed!

If you accept it, as long as the color is uniform and consistent (look at the direction of the light from the side, it is difficult to find the problem if the front light is not enough), smooth and smooth without falling, the surface does not fall powder, and use a two-meter ruler to lean against the wall, and the gap in the middle cannot be greater than 2 mm!

Latex paint is a commonly used coating, and its implementation standards mainly include the following aspects:

Basic properties: Latex paint should have good adhesion, hiding power, wear resistance, pollution resistance and other basic properties.

Environmental search performance: latex paint should meet national environmental protection standards and do not contain harmful substances, such as formaldehyde, benzene, etc.

Testing standard chain standard: Latex paint should be subject to strict quality testing to ensure the quality and safety performance of the product.

In short, the implementation of latex paint standards is mainly to ensure the quality and environmental performance of products, as well as to ensure the safety and effectiveness of construction.

The two implementation standards of latex paint are as follows: 1. Performance standard GBT9756-2018: The performance standard divides latex paint into primer and topcoat, and the topcoat can be divided into following according to the requirements of use

Qualified products, first-class products, excellent products, and the primer is not divided, the three grades of topcoat, from the requirements of the national standard performance table, the parameters are the same, only the ratio and the number of times of washing resistance are different, the larger the number of the ratio, the better its coverage performance, and the more times the washing resistance, the better. 2. Environmental protection standard GB18582-2020: This is the latest mandatory standard of the country, this standard mainly stipulates harmful substances such as benzene, VOC, formaldehyde, shirt traces and heavy metals, only latex paint that meets the standard can be sold formally, the new standard has been enforced on December 1, 2020.

How the wall decoration will directly affect the home decoration effect of the whole interior, so the acceptance should be carried out in strict accordance with the wall standards, so what is the acceptance standard of latex paint wall?

1. What is the acceptance standard for latex paint walls?

1. Whether the variety and color of the latex paint material used meet the requirements of the design. Check whether the color of the brushed surface is consistent, whether there is sand hole, whiskering, etc., and do not allow quality defects such as missing brushing, powder loss, skin alkali, peeling, and color biting.

2. When spraying with a spray gun, the spray point should be dense and uniform, and there should be no skin and falling, and the paint film should be touched by hand to see if it is smooth and does not fall off. The latex paint wall can not have the phenomenon of powdering, peeling, missing brush, penetrating the bottom, biting the bottom, sagging, pimples, brush marks, etc.

3. Look sideways at the flatness of the wall and check whether there is wavy.

4. Check whether the surface of the wall is flat, whether the reflection is uniform, and whether there is hollowing, blistering, cracking and other phenomena. Generally, the paint of wood board and gypsum board ceiling is latex paint, and the surface should be flat and there are no cracks in the board joint.

5. Check whether the latex paint wall is polluted and whether there are dirty stains.

Second, what brand of latex paint is good.

1. Bauhinia lacquer bauhinia (bauhinia lacquer (Shanghai)****).

Brand birthplace: Hong Kong, Macao, Taiwan and Hong Kong, China.

2. 3Trees SKSHU (3Trees Paint Co., Ltd. ****).

Brand birthplace: Putian City, Fujian Province.

3. China Resources Paint (Guangdong China Resources Paint).

Brand birthplace: Foshan City, Guangdong Province.

Advertising slogan: Paint industry is a real expert.

Summary: The above is what is the acceptance standard of latex paint wall and what brand of latex paint is good for everyone, I believe you have a corresponding understanding after reading the above sharing, if you need to know more about it, please continue to pay attention to Qeeka Home**, will answer for you one by one.

In view of the quality requirements of interior wall latex paint, at this stage, what are the requirements for the quality of interior wall latex paint in China? What's the basics? The following is the relevant content of professional architectural terminology of Zhongda Consulting to sort out the quality requirements of interior wall latex paint, and the basic situation is as follows:

Interior wall latex paint is an economical latex paint for interior wall decoration researched and developed in combination with the needs of domestic decorators and home decoration. Interior wall latex paint uses water as the dispersion medium, which is safe and non-toxic, convenient for construction, good leveling, soft color, delicate paint film, and has good covering power and adhesion. Interior wall latex paint is suitable for the decorative protection of concrete walls, cement mortar walls and lightweight partitions of various inorganic materials.

Interior wall latex paint quality requirements:

Quality standards for interior wall latex paint: 1. Free formaldehyde.

The free formaldehyde in interior wall coatings is mainly used in additives such as synthetic resin emulsions and antifungal agents, which can ensure the chemical stability of the coating during production and transportation, prolong the storage time of the coating, etc. However, the formaldehyde of free formaldehyde will be released into the environment with the drying of the paint into a film, if the index exceeds the standard, it is easy to cause indoor air pollution, and when the concentration is high, it can cause nausea, vomiting, coughing, chest tightness, wheezing, emphysema, and even death

Quality standards for interior wall latex paint: 2. Volatile organic slurry slag complex (VOC).

The content of total volatile organic compounds in interior wall coatings should only be affected by human health and indoor environment pollution during the production, construction and use of coatings, and the national implementation standard for this is 200g l

Quality standards for interior wall latex paint: 3. Freeze-thaw resistance.

In the 2008 revision of the "Determination of Freeze-thaw Resistance of Latex Paint", the determination of freeze-thaw resistance of latex paint is 244kb

Quality standards for interior wall latex paint: 4. Washing resistance.

Scrubbing resistance is one of the important technical indicators of interior wall coatings, home life is more likely to stain the wall, good paint can be wiped with water at any time, without being wiped off. The national burial home standard stipulates that the scrubbing resistance is qualified: 200 times; First Class:

500 times; Premium 1000 times.

Interior wall latex paint quality standards: 5, contrast ratio.

The contrast ratio is a test item set for white and light paints, which can reflect the ability of white and light paints to eliminate color or color differences on the substrate, and can also indirectly reflect the amount of paint used to cover the same area of substrate. The lower the contrast ratio of the paint, the worse the product's ability to cover the substrate, the worse the coating effect, and the larger the amount of paint per unit area.

Latex paint coatingThe variety and color of the materials used meet the design requirements, and the color of the brushing surface is consistent, and quality defects such as penetration, missing brush, powder loss, skin alkali, peeling, and biting color are not allowed. When using spraying, the spray point is dense and uniform, no skin phenomenon is allowed, no flow is allowed, the paint film is smooth when touched, the powder shirt is resistant, the doors, windows, lamps, furniture, etc. are clean, and there are no traces of paint.

The common quality defects of latex paint painting include blistering, anti-alkali powder loss, flow, bottom penetration, and unsmooth coating.

BlisteringThe main reasons are improper treatment of the base layer and too thick coating, especially when the large core board is made of the base layer, it is easy to blister. In addition to stirring the paint evenly before use and mastering the consistency of the paint liquid, the method of prevention can be to brush 107 glue on the bottom putty layer before painting.

When reworking and repairing, the blistering and peeling area should be cleaned up, and 107 glue should be brushed before repairing.

Anti-alkali powder:The main reason is that the base layer is wet construction before drying, and the unbrushed sealing primer and the paint is too thin are also important reasons. If it is found that the powder is reversed, it should be reworked and repainted, and the painted materials should be removed, and the base layer should be dried before construction.

During construction, it is necessary to brush it with a sealing primer, especially for new walls, the consistency of the topcoat should be appropriate, and the white wall should be slightly thicker.

Falling:The main reason is that the viscosity of the paint is too low and the coating is too thick. The consistency of the paint must be adjusted during construction, not too much water, and the pen must be diligent, less dipped and diligent during operation to avoid sagging and flowing.

If there is a fall, you need to wait for the paint film to dry and then polish it with fine sandpaper, clean the finish and then apply the topcoat.

Thoroughfare:The main reason is that the paint or Qiaochun is too thin, the number of times is not enough, or the quality of the material is poor. In the construction, products with high solid content and strong hiding power should be selected, and if it is found that the bottom is penetrated, the number of brushing of the topcoat should be increased to meet the painting standards required by the wall.

The coating is not smooth:The main reasons are that the paint liquid has impurities, the paint liquid is too thick, and the quality of the latex paint is poor. In the construction, it is necessary to use a brand with good wide regret leveling, and the paint should be filtered before the last topcoat is applied.

The paint liquid should not be too thick, and when the coating is not smooth, you can use fine sandpaper to polish it smoothly and then apply the topcoat again.

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