When friends need to decorate the wall outside the body, they can use some anti-cracking putty powder . So some friends about this anti-cracking putty powder don't know what kind of paint is anti-cracking putty powder. Our Xiaobian will introduce it. Next, I hope to help my friends, this anti-cracking putty powder has some advantages, the role of anti-cracking putty powder, and how to use anti-cracking putty powder are all in the following article, you can read it.
First, the introduction of anti-cracking putty powder
1. Putty powder is a kind of building decoration material, the main component is talcum powder and glue. A layer of white - putty on the surface of the rough house that has just been purchased, usually the whiteness of the putty is above 90 and the fineness is above 330.
2, putty is a kind of substrate used for wall repair and leveling, laying a good foundation for the next decoration (brushing and painting wallpaper). The putty is divided into two types: the inner wall and the outer wall. The outer wall putty should resist the wind and the sun, so the glue is large, the strength is high, and the environmental protection index is slightly lower. The internal wall putty comprehensive index is good, healthy and environmentally friendly, so the interior wall is not used externally, and the external wall is not used internally.
3, usually putty is gypsum or cement-based, so the surface roughness is relatively easy to bond firmly. However, during the construction, it is necessary to apply a layer of interfacial agent on the base layer to seal the base layer and improve the adhesion of the wall surface, so that the putty can be better bonded to the base surface.
Second, anti-cracking putty powder characteristics
1. Putty powder The main raw materials of Nippon are paint base, filler and coloring pigment. Although the paint base is the main ingredient, it is used in a small amount. The filler is used in large quantities, and the filler is a material such as talc and calcium carbonate. Pigments are generally used in three types: carbon black, chrome yellow and iron red.
2, putty powder Libang's physical properties are cream, the product can be used directly, do not need to re-distribute. Generally, the scraper is used to scrape the putty paste, the construction project is simple and convenient, the construction cost is saved, and the efficiency is relatively high.
3. When there is a depression on the base layer of the wall, the putty powder can be used for leveling, which has a very important influence on the subsequent process. If the base layer is not treated well before the coating is applied, the paint coating is prone to chromatic aberration, cracking, and the like. The unevenness of the base layer will also directly reflect the surface coating effect.
Third, anti-cracking putty powder effect
1. The wall surface can be kept smooth and smooth with the application of putty powder. It has a uniform effect, which makes the future decoration project better. It is an indispensable material in decoration. Putty powder is generally composed of base materials, fillers, water and additives, and also can add some fiber components, which can play a good role in crack resistance.
2. The base of the putty powder is usually gypsum or cement, so that the surface is rough but can be easily bonded firmly. Generally, the base layer can also be coated with an Interface agent to seal the base layer and improve the wall surface during construction. Focusing on the purpose of doing this is to better increase the bonding ability of the putty powder and make the construction more convenient.
Fourth, the use of anti-cracking putty powder
1. The ratio of elastic cracking putty powder to water of outer wall is 1:0.4-0.45. Add water and then add powder. Stir for 3-5 minutes with electric mixer to form a paste-free paste. Allow to stand for 5 minutes and stir again. It can be used for construction.
2. The batch batch scraping thickness is controlled within 3mm.
3, after the putty drying, depending on the temperature and humidity conditions (about 40 degrees) need to be watered for maintenance, curing 2-3 days.
4. The moisture content of the base wall is greater than 10%. It is necessary to extend the time of painting the coating or to cover the bottom with an alkali-resistant primer.
What are the anti-cracking putty powder, what are the advantages, and what are the effects of the anti-cracking putty powder, and what is the correct way for everyone to use the anti-cracking putty powder, which has been introduced in the article content, has not been seen Friends can read this article again, there are more decorative information in our decoration home network, I hope everyone will continue to pay attention.
The RCA interface (CVBS)
Composite Video Broadcast Signal
CVBS is short for Composite Video Broadcast Signal. This is the most common video interface, the first application in the field of radio and television, then a lot of camera output support the CVBS interface, CVBS signals are interlaced video signal, and a resolution of 720 x576 (PAL) or 720 x480 (NTSC), CVBS is the analog video signal interface, has gradually been digital video signal interface and replace the hd video signal interface.
The AV interface (CVBS)
AV video interface English full name is: "Composite video connector", AV terminal is usually consists of three lines, transmission of video is usually yellow RCA terminal, the other with two red and white RCA terminal transmit audio, transmitted in AV terminal is analog TV signal source of three elements: Y, U, V, as well as the benchmark of the pulse signal synchronization. Y represents the brightness of the image (luminance, also called brightness), and contains the sync pulse, as long as there is signal Y can see black and white television image (in fact, this is the method of color TV and early black and white TV compatible). The U and V signals are loaded with color data. The U and V are first mixed into two sets of orthogonal phases ina signal (the mixed signal is called Chrominance), and then summed with the Y signal. Since Y is the fundamental signal and UV is mixed with the carrier, this summing action is equivalent to frequency division multiplexing.
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