Is exterior wall putty powder environmentally friendly to use indoors?

Putty does have interior wall putty and exterior wall putty, but the products of exterior wall and interior wall are not the same, and it is not that the exterior wall is necessarily better than the interior wall.

2.from the implementation of the standard.

In other words, the crack resistance and weather resistance of exterior wall putty.

The requirements are very high, water resistance is certain, but the exterior wall putty does not need to do the environmental protection testing of indoor materials, so the exterior wall putty is generally through the blending of glue (this glue is much better than the performance of the same, but also a lot more expensive) to achieve crack resistance, weather resistance, and the use of this glue environmental protection is relatively poor, if it has to be used in the interior wall, it is easy to cause formaldehyde, VOC exceedance.

Another important point is that the common exterior wall putty on the market is almost all fake, in other words, it is inferior exterior wall putty that does not meet the standard of exterior wall putty but pretends to be exterior wall putty. Most of this kind of putty is not two-component, that is, there is no need to blend glue, although the risk of environmental protection is reduced, but the performance is very doubtful, whether it can really achieve indoor water-resistant putty.

The standard is also difficult to say.

4.If there is enough time (more than 7 days), it is recommended to do a simple test first: ask for a sample of exterior wall putty, stir it well, and evenly wipe it on the wall or cement board.

on, after 7 days, splash water to moisten the putty, rub it with your hands to see if it becomes a white pulp, if it is, it is not a fine leveling with good water resistance, if not, then you can use it (provided that it cannot be mixed with glue).

Exterior putty can be used indoors, but it is generally not recommended for interior use. On the one hand, the reason is that exterior wall putty is much more expensive than interior wall putty, and if the exterior wall putty is used internally, the cost will increase; On the other hand, the exterior wall putty is more coarse than the interior wall, and the interior wall putty is not as white and delicate as the interior wall putty, and the effect after painting latex paint is not as good as the interior wall putty!

facadesPutty powder brother is suspiciousYou can also brush it outsideWaterproof coatings

After scraping the waterproof putty powder on the wall, it is possible to brush the waterproof coating. In the process of wall decoration, putty powder construction and selection are very important. Improper construction of putty powder or insufficient quality will cause cracking of the exterior of the building wall, which will lead to the shelling and falling off of the coating, and sometimes even cause water seepage on the wall, which seriously affects the decoration and protection function of the coating.

The introduction of putty powder used in decoration is as follows:

In home decoration, water-resistant putty powder is generally used, and only need to be stirred with jujube water. If some putty powder still needs to be glued when stirring, it must not be water-resistant putty powder.

Because the current water-resistant putty powder has been added to the latex powder extracted from plants in the production process, the glue containing formaldehyde has been added to the non-water-resistant putty powder, which has been eliminated. Therefore, when you buy, you must understand clearly for the health of your family.

The putty used on the exterior wall is also suitable for indoor use, because the quality of the exterior wall putty is water-resistant than that used indoors, and the putty generally has the distinction of interior wall putty and exterior wall greasy, but the products of the exterior wall and the interior wall are not the same, and the exterior wall must be better than the interior wall, if the time is still sufficient, you can try to do a simple test first.

Exterior wall putty powder cannot be used in interior decoration, only for building facades, not for the ground and ceiling. In case of large cracks and potholes, it is necessary to apply for pretreatment of anti-crack gyes with different functions before subsequent construction.

The exterior wall powder is made of kaolin as the base material, with fibrous starch materials and other additives. Its outstanding characteristics are high bonding strength, alkali resistance, good construction performance, as a surface leveling material for outdoor buildings, to avoid the occurrence of peeling, blistering, chalking and falling off.

It is necessary to treat the anti-cracking substrate with different functions before the follow-up construction of exterior wall putty powder can be carried out, otherwise it is easy to crack.

1.Exterior wall putty powder can be used for interior walls.

2.But try not to use exterior putty to brush the interior wall, because the exterior wall putty** will be much more expensive than the interior wall, which will also lead to an increase in decoration costs.

3.Moreover, the decorative effect is also relatively rough after construction, and it is not as delicate as the interior wall putty, which will affect the effect of painting in the later stage.

Ask Lafarge caulking paste primer, and then batch interior wall putty, will there be anti-alkali phenomenon, and if so, is there any way to remove it.

Answer 1: If it is only the phenomenon of alkali return on the surface, it is mainly caused by the poor compactness of the material inside the material and the easy absorption of water. The treatment method is surface cleaning, combined with the surface pollution and acid rain reaction of the material during use, and a certain proportion of oxalic acid solution is used for regular cleaning.

This is a pretty good way to deal with it.

Question: What is the cause of the anti-alkali phenomenon in the general interior wall?

The general reason for answering the alkali return is that the solid particles that cannot be firmly coated after the solidification of the base layer, middle layer and surface layer are soaked out of the surface by external force and produced after drying. Cement alkali return may have certain reasons related to cement quality, sand, water, air, temperature, and humidity.

There are many reasons for the alkali resistance of interior walls.

The material of the interior walls can be caused by.

Exterior wall putty powder generally cannot be used in interior decoration.

Putty powder is a kind of building decoration material, and the main components are talcum powder and glue. The interior wall putty powder used on the top surface of the interior wall usually has a whiteness of more than 90 and a fineness of more than 330. Putty is a substrate used for wall repair and leveling, which lays a good foundation for the next step of decoration (brushing latex paint, sticking wallpaper, etc.).

Putty is divided into two types: interior wall and exterior wall, and the exterior wall putty should resist wind and sun, so it has high gelatinity, high strength, and slightly lower environmental protection index. The comprehensive index of interior wall putty is good, healthy and environmentally friendly, so the interior wall is not used externally, and the exterior wall is not used internally.

How to use: 1. The base layer should be solid, clean, roughly flat, and free of open water, and the strength of the base layer should be greater than or close to the strength of putty.

2. The base layer with strong water absorption should be moistened with water or sprayed with glue for back sealing treatment, and then putty should be scraped (the consistency should be suitable for construction).

3. The newly plastered cement wall should be scraped putty after the curing period.

4. Stir evenly according to the ratio of putty powder: water = 1:, let it stand for 10 20 minutes and stir it evenly again.

5. Use a steel scraper or spatula to scrape according to the conventional batch, the number of scraping and coating should not be too much, usually two batches of scraping, and the second coating can only be constructed when the front coating is dry.

6. Batch scraping thickness, dosage 1, generally twice survived.

7. After the putty is dry, polish it with 360 sandpaper, and paint or paste the wallpaper as soon as possible.

8. Dosage: In the case of a flat base, each kilogram of putty powder can be about a square meter (two batches) of flat walls.

Precautions. 1. When storing, pay attention to waterproof and moisture-proof. The storage period is six months.

2. The construction temperature is above 0, and the putty powder should be used within 4-5 hours after being adjusted into a paste to avoid deterioration for too long.

3. Putty powder should not be used on the same construction surface with other putty, so as not to cause chemical reaction and color difference.

It is usually not recommended for exterior walls to be used on interior walls, not only putty.

The environmental protection coefficient of the exterior wall and the interior wall is much different, and all indicators should be lower, and the interior wall will be more rigorous. So it's best not to use it that way.

Exterior wall putty powder is large, if your interior wall requirements are not high, such as corridors, garages, and storage rooms, otherwise you can also use interior wall putty powder.

The putty used on the exterior wall is also suitable for indoor use, because the quality of the exterior wall putty is water-resistant than that used indoors, and the putty generally has the distinction of interior wall putty and exterior wall greasy, but the products of the exterior wall and the interior wall are not the same, and the exterior wall must be better than the interior wall, if the time is still sufficient, you can try to do a simple test first.

The main components of putty powder are white cement, heavy calcium, gray calcium, vae rubber powder, 17-88 rubber powder, cellulose, etc., which are environmentally friendly and harmless. So exterior wall putty powder can be used on interior walls.

Wrong! You add white cement and say it's no harm! How do you know that some black-hearted manufacturers cut corners! Occasionally, they use chemical raw materials! For example, Guangdong's Kangchao putty powder! It's rubbish!

Putty powder, whether it is dedicated to the interior wall or the exterior wall, will cause harm to the body.

There is no harm, but the exterior wall is added with white cement.

Harmless. Under normal circumstances, interior wall putty powder is formaldehyde-free, and the putty used in construction is divided into ordinary putty and water-resistant putty.

The putty used in the exterior wall is also suitable for indoor use, because the exterior wall putty is resistant to the quality of water is better than that used indoors, and the putty generally has the distinction of interior wall putty and exterior wall greasy, but the products of the exterior wall and the inner wall are not equivalent, and it is not that the exterior wall is specific to be better than the interior wall.

The putty on the exterior wall is added with white cement, and if it is toxic, the cement will be poisonous.

It is not recommended to scrape the exterior wall with putty for the interior wall, and it is no problem to scrape the interior wall for the exterior wall.

But I recommend buying some putty powder.

: The first problem is that there may be cracks on the surface. Because the adhesion of exterior wall putty is very high, if the surface of our interior wall base is not treated well, it is easy to crack.

For example, if there is sand and sand on the surface, then the putty may crack, and there may be large-scale cracking. These are common problems with interior walls used with exterior wall putty.

The second problem is that the smoothness of the finished surface of the putty is very poor. This is mainly determined by the characteristics of the exterior putty.

Because the mesh number of exterior wall putty is relatively low, if it is used on interior walls, the surface of our interior wall putty is difficult to treat smooth. This will add a lot of difficulty to our later painting latex paint or pasting wallpaper.

Judging from the standards implemented by exterior wall putty and interior wall putty, the crack resistance and weather resistance requirements of exterior wall putty itself are indeed very high. However, there are no clear requirements for the environmental performance of the exterior wall.

That is to say, generally speaking, exterior wall putty does not need to be tested for the environmental protection of indoor materials. Most exterior putty uses glue to increase the bonding performance. In this case, if we use this exterior wall putty indoors, it is easy to cause an increase in indoor pollutant release.

For example, common formaldehyde and VOC exceed the standard.

Exterior wall putty is used on interior walls, the advantages of waterproof effect are good, it is not easy to fall off, the disadvantage is that the fineness is not good, and the number of putty mesh is large and delicate.

Summary. Dear, it's okay, it's just more wasteful. Try not to use exterior wall putty to brush the interior wall, because the exterior wall putty will be much more expensive than the interior wall, which also leads to an increase in decoration costs, and the decorative effect is relatively rough after construction, not as delicate as the interior wall putty, which will affect the effect of painting in the later stage.

Dear, it's okay, it's just more wasteful. Try not to use the orange of the exterior wall greasy bend pin to brush the interior wall, because the exterior wall putty buried in the group will be much more expensive than the interior wall, which also leads to an increase in the cost of decoration, and the effect of the decorative bucket calendar after construction is also relatively rough, not as delicate as the interior wall putty, which will affect the effect of painting in the later stage.

The most significant difference between these two types of putty is that the oak brother is in the ingredients, for the exterior wall putty, it is mainly prepared with white cement, while the interior wall putty powder is mainly made of double fly powder. The hardness of the outer wall is greasy and the bush will be stronger than the inner wall putty. At the same time, they are also different in terms of water resistance, exterior wall putty has good water resistance, while interior wall putty is inferior to a cherry, this is because exterior wall putty powder is mainly used on the exterior wall, and the environment of the interior wall putty is different, so the water resistance and hardness are required to be good.

Summary. Exterior wall putty powder can be used on the interior wall, but try not to use exterior wall putty to brush the interior wall, because the exterior wall putty will be much more expensive than the interior wall, which will also lead to an increase in decoration costs, and the decoration effect is also relatively rough after construction.

Exterior wall putty powder can be used on the interior wall, but try not to use exterior wall putty to brush the interior wall, because the price of exterior wall putty will be much more expensive than that of the interior wall.

The water resistance and hardness of exterior wall putty powder are much stronger than that of interior wall putty powder, as for environmental performance, thickness, and fineness, there is not much difference between the two. The color of the exterior wall putty powder will not be particularly white, which will also affect the high effect of scraping out the wall surface.