Which is better, Meichao 400 or 303 putty powder, is 400 harder than 303? The oilman said that it wo

Meichao's products are much better than 303 putty powder, in terms of strength, waterproof effect, and anti-crack effect, they are much better than 303, and ** are much more expensive than 303, so 303 is generally used, which is cheaper.

Putty is generally composed of base material, filler, water and additives.

The binder, also known as the binder, is the most critical component of putty, mainly playing various roles such as bonding. The most commonly used binders for putty are cement and organic polymers, which are divided into emulsions and latex powders. Cement is a binder with good cohesiveness, durability and reasonable cost performance, but it has poor tensile strength and crack resistance.

Organic polymers can be modified and toughened to improve putty performance.

Fillers mainly play a filling role, and commonly used are calcium carbonate, talcum powder and quartz sand. Attention should be paid to the combination of packing fineness.

Additives include thickeners, water retention agents, etc. Thickeners and water-retaining agents play the role of water retention, improve storage and construction performance, and cellulose is generally used. Antifreeze is mainly used to improve the storage stability of putty at low temperature, and slip agents and water reducers are generally used in high-grade putty to improve the construction performance of putty.

Some also add fibers to resist cracking.

I'm also an oiler, don't listen to those people's nonsense. It's best to buy the materials yourself, and you can see which one is more detailed, which one is good. In fact, putty doesn't matter, the main thing is that the paint should be used well, and it is recommended that you use elastic paint. Elastomeric coatings can be waterproof and mildew-resistant.

303 putty is finer than Nippon putty, and the degree of construction is higher than that of Nippon, ** is also cheaper, and the family is cost-effective.

Hard is hard but not good construction, it is recommended to use Lidejia's OK, good scratch no taste, strength is very good.

400's have 400kl and 400kf, one crack resistant and one chalking resistant; Refers to 400 purposes. There are 800jj and 800gq of 800, one is water-resistant putty, and the other is high-strength water-resistant putty; It is 800 purposes. The difference between 400 mesh and 800 mesh is that the 400 mesh powder is not as fine as the 800 mesh, and it is a little thicker, of course, it will be better polished.

However, the finer the powder, the higher the flatness, and the more textured the wall will be. So 800 is one level higher than 400, and it is much more expensive. There is also the product itself, 400 has poor water resistance, so 800 is the most widely used in the south, anti-cracking, water-resistant, non-bulging, delamination, and yellowing.

Putty is a kind of building decoration material, just purchased a layer of white on the surface of the rough house - putty, usually the whiteness of putty is more than 90, and the fineness is more than 330. Putty is a substrate used for wall repair and leveling, which lays a good foundation for the next step of decoration (painting and wallpaper). 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.

Usually putty is gypsum or cement-based, so that the surface is rough and it is easier to bond firmly. However, during construction, it is still necessary to paint a layer of interface agent on the base layer to seal the base layer and improve the adhesion of the wall at the same time, so that the putty can be better bonded to the base surface.

The brand of 303 putty powder is used more in the household, and it is also a more environmentally friendly brand, where is it good Putty powder is produced according to a reasonable material ratio and mechanized way, and its quality meets the national JG T3049--* building interior putty standard, 303 putty powder avoids the error caused by the on-site ratio in the traditional process and the problem that the quality is not guaranteed Putty powder 901 and other glues must be added to the traditional process, and the glue contains too many harmful substances, Formaldehyde, in particular, will have an uncomfortable smell after the putty is applied to the wall! In addition to talcum powder, the raw material of 303 putty powder is a natural vegetable glue! There is no smell after the wall is approved!

Its environmental protection requirements meet the requirements of the national mandatory standard GB18582-2001, and the content of harmful substances is far lower than the national requirements Putty powder is also used in the traditional process of cellulose sodium, which needs to be soaked in water for a long time before it can be used, and the result is likely to cause damage to the indoor environment. 303 putty powder because it is also a binder, when it is mixed with talcum powder, it will inevitably overflow, so that the construction site will become dirty. If renovated in the summer, its scene will be obvious.

In addition, sodium cellulose is difficult to soak in winter, so the bonding effect is greatly reduced. The raw materials of 303 putty powder are very soluble in water, as long as you add water and stir, you can use it.

Putty powder, we are not unfamiliar with the word, it is an indispensable product before home decoration paint, as an important product for decoration, so how about 303 putty powder? 303 putty powder is a green and environmentally friendly interior wall decoration material, which does not contain any chemicals that pollute the environment and endanger human health. Nowadays, it is used more in home decoration.

To put it simply, the former is ordinary putty, and the latter is water-resistant putty. Compared with the water-resistant putty, it shows that the hardness is high, the wear resistance is good, and the water resistance is very superior, and the good water-resistant putty does not need to be eradicated during the secondary decoration, which saves the decoration cost in the long run. Of course, ordinary putty is also very easy to use, the key depends on your own decoration budget However, you can't use many bags of putty for decoration, there are twenty or thirty bags at most, and there is no difference of a few dollars!