How to solve the problem of latex paint anti coarse, what to do if the latex paint looks coarse and

Hello, I am a latex paint production engineer. There are two main reasons for anti-coarseness: one is insufficient dispersion, and the other is thickening after thickener.

Suggestions: 1. Increase the dispersion time, add multi-functional additives and dispersants at the same time when dispersing, and let hydroxyethyl cellulose participate in dispersion, so that the cellulose can be fully dissolved, so that the cellulose will not be thickened after production, and the viscosity of the dispersion can be increased at the same time, which can improve the contact force between the powder and the dispersion disc and improve the dispersion effect; 2. Reduce the amount of light calcium and kaolin, not more than 200 kg, because these two powders are very absorbent and easy to agglomerate; 3. The alkali solubility thickener is used in conjunction with the associative thickener, because the alkali soluble thickener is easy to produce post-thickening phenomenon; 4. The whitening agent is selected first, the solid (the unit price of the whitening agent is more than 30 yuan per kilogram) should not exceed 250 grams, and the liquid whitening agent should not exceed 1 kilogram (1 ton of output). Above, I hope it will help you.

Use a sand machine to sand flatten, and then paint a little clear, roll it up, and it's OK

Whether you're inside the bucket or on the wall. In the bucket, the water was not mixed properly. If it's a wall, it's going to have to be sanded. It would be better that way.

I think it's not ideal for wetting! Chemistry of New Elements.

High-gloss latex paint, mercerized paint and metallic paint are all high-gloss paints.

Half-defeated cherry matte latex paint, the surface has strong diffusion, the texture is more natural and slightly reflective.

Full matte latex paint, no reflection on the surface, weak diffusion, looks dull, visible in sunlight slightly coarse texture.

The particle size of the latex paint is determined.

How much latex is added to the latex paint is determined by the category.

If you want to add latex to the latex paint with poor gloss to increase the reflectivity, you must be cautious and distinguish the acidity and alkalinity of the original latex of the latex paint before you can add it.

You should choose a matte one, and the matte latex paint is also very good-looking, especially for indoor use, and it can be bent to adjust the color. The pink color of our home, placed in the bedroom, the matte wall, looks very warm. Chenguang latex paint green sullen staring color pollution-free, healthy and environmentally friendly, matte and mercerized have, interior wall decoration and repair, dustproof and moisture-proof, dirt-resistant and wear-resistant.

So even if you don't have a gloss, as long as it's environmentally friendly and the color matching is good, it's okay.

It is because the putty is not polished in place during the construction process. You need to find a professional painter to handle it for you.

Causes of latex paint wall roughness:

1. The flatness of the putty layer grinding is not good - the putty surface is uneven;

2. The base layer after grinding is not cleaned up - the floating dust of the grinding adheres to the surface of the base layer;

3. The aqueous solution of latex paint is not clean (there are particles) or the roller touches the baseboard or ground with floating dust when brushing.

the corresponding processing method;

1. For the grinding of the putty layer, avoid sanding the wall with coarse sandpaper at the end, which will cause the wall putty to have marks similar to scratches, which will directly lead to a rough surface effect. Use 360 sandpaper to grind it to make the putty wall smooth and smooth;

2. After polishing, the putty wall needs to be blown clean with a high-pressure air pump, and soft utensils such as a feather duster can also be used to clean it - to ensure that the wall is not scratched;

3. When preparing the aqueous solution of latex paint, it is necessary to ensure that the utensils are clean and free of debris; Clean the baseboard and the base of the wall before rolling the wall. Avoid accidental contact with the roller, dust and debris, resulting in contamination of the wall latex paint.

Other precautions: If the latex paint has suspended solids, please filter it with a strainer before use!

First: It may be that the wall foundation is not laid The normal step is 1, first smooth the wall, then scrape the putty, brush the primer 1 time, generally every other day, brush the top coat 2 times. Each paint is applied every other day. Re-polishing.

Second: The scum you are talking about should be a problem with latex paint, and latex paint with poor quality or latex paint will precipitate after being placed for a long time, such as dregs.

Third: the scraper scrape is definitely not as good as the roller or spraying! The master's skills may also be lacking!

Because the roller cannot be as uniform and delicate as spray paint, it will always be a little rough to the touch, as long as it does not look pitted to the naked eye, it will not affect the appearance.

Latex paint is not environmentally friendly, and Qianmeng ecological inorganic dry powder is smooth and delicate after construction, and resistant to water washing.

The first may be that the wall is uneven, the second is that the latex paint is not sprayed well, and the third is that the quality of the latex paint is problematic.

I really feel rough can be a layer of talcum powder.

It may be a quality problem of latex paint, or it may be a workmanship problem.

Rough is textured, smooth like a mirror is ugly! Nowadays, many people paint the wall deliberately to create some rough textures.

The construction is not meticulous enough, and there may be that the latex paint you use is not good enough, refer to the following brands, see the official website for construction methods.

1.Nippon Paint Latex Paint (Japanese Brand, Top 10 Paint Brands, Top 10 Brands Latex Paint).

2.China Resources Paint Latex Paint (China Famous Trademark, China Famous Brand, Top Ten Brands of Paint, Top Ten Brands of Latex Paint).

3.Bauhinia latex paint (China famous brand, top ten brands of latex paint, Hong Kong in 1982).

4.Red Apple Latex Paint (China Famous Trademark, Top Ten Brands of Latex Paint, Top Ten Brands of Paint, Fujian Famous Brand).

5.Dulux Latex Paint (British ICI Group World Brand, Top 10 Paint Brands, Top 10 Brands Latex Paint).

6.Meitushi latex paint (China's well-known trademark, top ten brands of latex paint, Guangdong famous brand).

7.3TREES Latex Paint (China Famous Trademark, China Famous Brand, Top Ten Brands of Latex Paint).

The main reasons are:

1. The putty powder particles are coarse, the traces of polishing are coarse, and the latex paint cannot cover them.

2. The total amount of latex paint is small, the thickness is not enough, and the number of layers is not enough; Or add too much water and the brush is not thick.

3. The number of sandpaper mesh is too low, and the effect of 320 mesh is generally very good.

Solution: 1. Brush the latex paint again. Brush thicker and cover a little;

2. Buy more delicate putty powder.

The latex paint is too thick, and the uneven strength of the roller brush will look a little rough, it is recommended to choose spray paint, the effect will be much better.

Each lacquer of each brand is different in dilution.

The walls brushed with a roller are nowhere near as glossy as sprayed. In addition, the thickness of the paint will also affect the gloss of the wall.

If you want the wall to look as smooth as a mirror, you need to use spray paint. It is best to have it done by a professional painter.

Is there a problem with the recipe?

Treatment method after curing of latex paint:

Method 1: There is pipeline dredging liquid in the supermarket, and a bottle is about 20 yuan to try.

Method 2, latex paint is insoluble in water and weak solvent after curing, go to the paint store to buy a bottle of butanone, do not buy xylene, a small amount each time, pour down the drain, repeatedly stir with a small stick or 10 yuan manual dredging paint, and then flush with water. However, if you wear a mask, the strong solvent has a pungent smell. Xylene is dazzling.

Judging from the current situation of home decoration, the proportion of latex paint is generally relatively high. The reason may be that the wallpaper process is relatively troublesome, the glue used for pasting is easy to cause pollution, and in addition, it is troublesome to replace it after a few years of obsolescence. Therefore, there are still more latex paints.

If it is useless for a long time, a thin layer of water should be poured into the solidification surface formed on the surface, and then added when it is dry, so that it can prevent solidification. After curing, adding some ice water treatment also has a certain effect.

Add water and stir as fast as possible, until it reaches a suitable viscosity

Latex paint is water-based, just add water and stir it directly.

If it is not used for a long time, pour a thin layer of water on the solidification surface formed on the surface, and then add it when it is dry, so that it can prevent solidification. When you use it again, pour out the hardened case.

If you want to use it after solidification, add water and latex, stir it with a stirrer, and it can be used, but the wall is very rough.

Once cured, it can no longer be used.

Add a small amount of water and stir directly with a tool.

Spray, there's dust, that's all.

The walls aren't dry, are they? Or the temperature is too low and there is no leveling.

The putty powder reacts with the latex paint.

Normal.

Clause. First, the quality of the wall should be good, and the powder should not be too coarse.

Clause. Second, the quality of the paint is generally OK.

The better the paint sprays out, the better. But before spraying, the ash on the wall must be swept clean with a feather duster. If you want the paint to be sprayed, the effect is good. The amount of lacquer is appropriately large, so that the paint film and smoothness are good, but be careful not to sag.

Generally, the matte ones are not particularly smooth, and the surface is like a matte surface. If the roughness is relatively high.

The main reason is that the quality of latex paint is not good enough. When you buy it, you can actually see that the latex paint is bad: the real latex paint is particularly delicate and lubricated.

The touch is a bit like thick yogurt, while the fake latex paint is grainy to the touch, not smooth to the touch, and feels very rough. Chenguang latex paint is water-based and environmentally friendly, healthy and pollution-free. Of course, the base layer is also very important, to ensure that each time is dry and then brush the next paint, so that the effect of the topcoat will be guaranteed.

It's not like the walls of other people's homes that are smooth to the touch.