The basic treatment of the wall directly affects the effect and durability of the wall decoration. There are two main reasons why the wall base is not done well. One is the quality of the wall itself, and the other is the quality of the putty. Let's talk about various wall putties below. . 1 Kinds and characteristics of base wall treatment materials A common putty before the old-fashioned wall is a sand gray plaster wall, there is a certain thickness, that is, the wall can also find the injustice, I feel that the old law wiping the wall is not gray, the wall is also flat, no cracks, my family sixties The old house is like this, and the later putty is only a thin layer of scraping on the concrete wall. If the uneven light is due to putty, it is uneven. The earliest putty is 107,801 glue plus fly powder or talcum powder and cooked rubber powder self-deployed, belonging to non-finished putty, although the price is low, but the procurement of a variety of raw materials is inconvenient, all workers feel right, the ratio is not standard, the quality Unstable. The old-fashioned putty has no resistance to water, easy to peel, de-powdering, and has a short life span. In particular, the adhesive 108 used in the raw material is not environmentally friendly and will cause harm to the human body. The post-manufactured 821 putty took a big step toward the finished putty, avoiding the errors caused by the in-situ ratioing in the traditional craftsmanship and the problems that the quality could not be guaranteed. 821 putty is an economic putty, poor adhesion, low bonding strength, no toughness, will appear powdery phenomenon in the event of moisture, this is because the humidity of the air in the water molecules will penetrate the wall, the putty surface powder, When the climate is dry, water molecules inside the wall will penetrate outside, so that the layer of putty powder, the last putty starch glue dissolved in water all lost, the wall will appear out of powder, peeling off, mold and other phenomena. Despite these drawbacks, 821 putty is widely used in home decoration construction for more than 20 years due to its convenient construction and affordable price. More than a decade ago, home improvement walls were basically polished old walls, scraping a layer of 107 and 821 putty. At that time, there was no concept of environmental protection. The use of an imitation porcelain putty felt extra senior. 821 putty main material composition is gypsum, a long time prone to peeling, shedding, cracking, resulting in damage to the wall decoration, maintenance is very troublesome. 821 putty does not have water resistance, the next time the decoration needs to remove the putty layer, re-apply scraping putty. In particular, 821 putty plus 108 glue environmental protection performance is poor, easy to formaldehyde exceeded, the Beijing Construction Committee regulations from October 1, 2001, in the home renovation project is prohibited to use 821 putty. B water-resistant putty water-resistant putty commonly known as waterproof putty, the first Beijing Lions Paint Co., Ltd. won this patent, in 1995 for industrial mass production. The water-resistant putty is composed of calcium carbonate, gray calcium powder, cement, organic rubber powder, water retaining agent, etc. It is made of natural vegetable adhesive as adhesive, strong adhesion, high bonding strength, good crack resistance, and no smell after construction. , It is green, non-toxic and tasteless and does not contain the advantages of formaldehyde, benzene, xylene and other harmful substances. The water-resistant putty wall surface has strong water resistance, and it does not appear powdery, cracked, peeled, and peeled after moisture exposure. The construction is convenient and the water is used, which can improve the performance and service life of the paint, and save the amount of latex paint. The wall surface is delicate in touch, uniform in color, and can be scrubbed or brushed with interior wall paint directly after wall pollution. It is the best combination of wall and paint (Figure ―――1). The water-resisting putty is insoluble in water. In the national standard test environment, the water-resistant putty is scraped onto the cement board and soaked in water for 48 hours. It does not give rise to peeling, cracking or falling powder, but also pulls strength (vertical The tensile strength is still above 0.3Mpa. The water-resistant putty foam will not cause problems in the water for seven days and seven nights. The walls will not be powdered after construction. High-quality water-resistant putty has high bonding strength, certain toughness, good air permeability, absorption of moisture from year to year, wall waterproof putty layer will be maintained stronger, wall scraping water putty once and for all, housing second No paint removal is required to remove the wall surface. Only a simple repair procedure is required to apply the paint directly. The branch company of Reines, Cored, has developed a third-generation wall putty, an anion water-resistant putty powder, in which the unique piezoelectricity and thermoelectricity of the tourmaline lining can ionize ambient air and stimulate the formation of a large number of negative ions. The surface continues to manufacture negative ions, increases the negative ion concentration in the living room, reduces the amount of toxic and harmful substances in the air, and improves the air quality in the living room. It can purify and reduce the amount of toxic and harmful substances such as dust, bacteria, and formaldehyde in the air. It is super-resistant to water, fine and delicate, resistant to self-cracking, not easily pulverized, completely dry and neutral in pH, excellent in workability, and effective at the same time. Prevent mildew on the wall. However, at present, Keruid putty products have not been able to be used in large quantities in the market due to their high price (Figure-2). It is also specifically stated that although water-resistant putty is known as waterproof putty by everyone, it is still different from true waterproof putty. Water-proof putty is the kind of anti-porcelain paint that Beijing has long ceased to use because of its dense surface. The water vapor cannot enter, this kind of waterproof putty will cause the wall to be airtight, there will be many problems such as hollowing out of the wall surface, falling powder and so on, the service life is not long. The C interface agent is a material used to seal the base layer. The surface of the cement wall is coated with an interface agent to improve the adhesion of the putty, effectively prevent hollowing, and prevent the putty from being loose due to the looseness of cement walls, floating soil, or excessive drying. Wall base problems. The US nest wall plaque is an interface agent. His role is to close the many particularities of the wall base and increase the firmness of the walls. The purpose of brushing the wall trowel is to make the wall "rough", enhance the wall adhesion, prevent cracking of the putty. In the past, it was mainly a 108-gel type interface agent, and its environmental performance was poor. The choice of putty 2 There are two important points to choose the quality of putty, one is environmental protection, one is solid, only water resistant can guarantee these two points in quality. A water-repellent putty's environmental protection The normal regular manufacturers' water-resistant putty have no problem, because the main raw material for putty is calcium ore powder, and the putty that has water resistance function is added with processed calcium oxide, and its own composition is no pollution material (but It should be noted that in the past, there was a kind of imitation ceramic putty that was added to 107 gel, so it was very environmentally unfriendly. As long as it was a branded product such as Beijing's Meichao and Lanes putty, it had environmental protection. Guaranteed, you can also see the manufacturer's environmental certification, the state regulations only through the Environmental Protection Administration "10 ring certification" of the product, can be called "green products." B water-resistant putty quality water-resistant putty quality requirements are strong bonding, no cracking, a certain degree of water resistance. In fact, the wall putty is not a high-tech thing, the raw materials are similar, the general regular manufacturers of water-resistant putty can basically meet the standard, putty products implementation of the national standard is "JG/T3049-1998 "Building with indoor putty"", formal The product should be found on the packaging. Such as the United States Nest, Lanes brand quality of these products Needless to say, other products can be putty to make a model, dry after the hand to wipe the water to see if the water, feel the strength with a key stroke, but also soaked in water, check the quality of putty . C putty dosage and cost-effective Putty's environmental protection and quality can guarantee, and then is the cost-effective, for example, putty in the Beijing market we all recognize the United States nest, in fact, Lions quality is not inferior to the United States nest, in terms of cost advantage is more dominant in Beijing The market should be more than 20% lower. However, when calculating the cost, it is necessary to pay attention to the calculation of shipping costs. There are many sales outlets in the United States. The large building supermarkets have sales. In the large building materials supermarket, they can be delivered to a certain limit and can be delivered free of charge. The Lanes sales outlets Not much, it is estimated that in the vicinity can be delivered, if it is relatively far may have to increase freight. Another advantage of Lions is that it is not fake, because Lions is mainly doing engineering, home sales are not large, so no one to fake it, generally fake Mizuo, so buy US nest putty try to buy a large supermarket Guarantee, the general building material city door face sells does not have the protection, but buys the beautiful nest may make the anti-fake telephone. Putty packaging is mostly a bag of 20 kg, usually a kilogram of putty can scrape a square meter of area, but this also depends on the flatness of your home wall, if the original putty quality is good, do not eradicate, just look for flat, The amount of putty is much less. The cost of putty for general wall scraping is 1.5 to 2.5 yuan per meter, plus the cost of the interface agent. Balcony package cement coating paint formaldehyde home improvement home decoration home decoration
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