Common knowledge of coating: cold knowledge of wall painting

Core tip: paint is almost essential in the process of our house decoration Now more and more people will buy barrels of paint to renovate their old walls The paint can protect the wall, choose the colorful color and beautify the whole indoor environment easily So, in the process of painting the wall, what mistakes should we pay attention to avoid? Let's see what important knowledge Jiuzhi decoration has helped you sort out! Mistakes in purchasing When we are going to buy paint, we will encounter various key concepts, but you may not be very Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Paint Home News: paint is almost essential in the process of our house decoration Now more and more people will buy barrels of paint to renovate their old walls The paint can protect the wall, choose the colorful color and beautify the whole indoor environment easily So, in the process of painting the wall, what mistakes should we pay attention to avoid? Let's see what important knowledge Jiuzhi decoration has helped you sort out! When we are going to buy paint, we will encounter a variety of key concepts However, you may not be very clear about what these terms and concepts specifically refer to They are fooled by carelessness 1 Zero VOC is the best? No! VOC is an important indicator of coating environmental protection Normally, the lower the VOC is, the better Now there are a lot of products claiming zero VOC on the market However, the VOC content has been reduced, and the viscosity of the coating will be relatively reduced After brushing, the powder will fall off, blister, crack and other situations It's terrible to think about it! In fact, the VOC content of coatings has a national standard which is harmless to human body Only when it reaches the standard can it be listed on the market, so it is not necessary to excessively pursue the VOC content 2 Odorless is environmental protection? No! As we all know, the paint with pungent smell must be inferior, so the product without special smell represents environmental protection? Of course, it is not enough In fact, odors can be achieved by adding flavors or low flavor materials Therefore, odorless coatings are not completely environmentally friendly and non-toxic The key is to see the test report of the authoritative certificate and formaldehyde test data! 3 The pursuit of self-cleaning and scrubbing resistance? No! There may be many small partners who think that the selection of coatings must choose the ones with scrubbing resistance or self-cleaning function In fact, the dirt resistance of the coatings is not as good as expected In fact, the walls at home are not so easy to be stained with ash However, we don't wash the walls many times every day So don't rely too much on the tossing and scrubbing resistant function Many of us want to save as much as possible and do not waste, but the paint is different from other building materials and can not save materials at will 1 Save money and labor and don't want to use primer? No! Is it OK to use primer if the quality of finish is good? Of course not The primer has multiple functions such as sealing the wall base, improving the adhesion and fullness of the top coat If there is no primer, the paint on the surface may lead to excessive paint absorption on the wall, discoloration and peeling off of the paint film soon after painting Therefore, when painting the wall, you must not remove the primer to save money You should know that the painted wall should be more durable and save money 2 It's also common for the surplus paint to be used next time Especially for the rest of the colored paint, it's very difficult to do it There must be some partners who say: just pour it back, don't waste it In fact, this is not right! For the paint that has been opened and used, the shelf life is very short and cannot be stored for a long time If it can't be used, it can only be dumped by the relevant professional recycling Department (can't be poured into the sewer casually), or it can be temporarily stored in a sealed container The mistake of spraying construction coating construction is actually a professional thing If you want to do it yourself, it is necessary to know the construction steps in advance In addition, you should pay attention to some skills beyond the steps 1 The latex paint and wood paint are constructed together? No! The wood paint products contain toluene diisocyanate (TDI) If the wood paint and latex paint are constructed at the same time, these TDI in the free state will react with the components in the latex paint to make the wall painted with the latex paint yellow Therefore, wood paint and latex paint cannot be applied at the same time It is recommended to brush wood paint first and then wall paint to prevent the components in wood paint from polluting the wall 2 The smoother the finished wall is, the better? No! Generally, two processes of roll coating and machine spraying will be used in the construction of emulsion paint For the wall with spraying construction, the smoother the surface is, the better, but not for roll coating - normally, there will be knurled marks If the wall after roll coating looks very smooth, it is actually caused by too much water in the paint Too much water in the paint will reduce the adhesion of the paint, easy to drop paint and other problems Therefore, for the emulsion paint wall surface treated by roll coating process, do not pursue the effect of very smooth surface It is recommended to use short and medium wool roll to construct, so that the roll printing of the wall surface will look more meticulous, as long as the roll printing looks more uniform, it will meet the requirements Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,