Paint knowledge | define the standard of water-resistant putty

Core tips: the standard of water resistant putty, putty for indoor use in building (JG/T298-2010), was issued in 1998, and before the standard was issued, there had been companies in the production of water resistant putty The formula of water-resistant putty was first tested successfully by Professor Shi Yumei of Architectural Science Research Institute At that time, the general putty that is not water-resistant was still used in most parts of the country, including Beijing, and even the unqualified putty that can not meet the JG / t298-2010 standard The biggest harm of these non water resistant putty is that its service life is short, it is easy to empty, peel and crack, which brings great hidden danger for interior decoration Beijing is the hair of building putty 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 House News: the standard of water-resistant putty, putty for interior use in building (JG / t298-2010), was introduced in 1998 Before the standard was issued, some companies were already producing water-resistant putty The formula of water-resistant putty was first tested successfully by Professor Shi Yumei of Architectural Science Research Institute At that time, the general putty that is not water-resistant was still used in most parts of the country, including Beijing, and even the unqualified putty that can not meet the JG / t298-2010 standard The biggest harm of these non water resistant putty is that its service life is short, it is easy to empty, peel and crack, which brings great hidden danger for interior decoration Beijing is the birthplace of building putty, and its building putty products are also the most formal and rapid development in China The third year after the establishment of water-resistant putty standard - on October 1, 2001, Beijing Municipal Commission of construction and planning issued the document jingjiancai [2001] No 192 "catalogue of the third batch of obsolete and restricted use of backward building materials products", which expressly restricted the use of "water-resistant gypsum type putty", and informed that the alternative product should be "various water-resistant putty" Since then, the interior walls of all new projects in Beijing must be leveled with water-resistant putty, otherwise the whole project will not be accepted Common building putty has two forms, one is powder, the other is paste, water-resistant putty is no exception Water resistant putty powder mainly consists of calcium carbonate, lime calcium powder and cement , organic rubber powder, ultra-fine filler and water retaining agent At present, most of the products do not add cement and organic rubber powder Such products have high bonding strength and water resistance, which are rigid and alkaline products However, because many manufacturers do not add organic rubber powder, the water resistance of the products is poor, the strength is low, and the wall surface after putty scraping has strong water absorption Water resistant putty paste is mainly composed of high molecular organic matter, lime calcium powder, ultra-fine filler and water retaining agent This kind of putty has high white color, high bonding strength, water resistance, and is a rigid and alkaline product According to standard JG / t298-2010, we can divide all indoor building putty into three categories: the worst category is "fake putty" which can't reach this standard, and this kind of putty is mainly ore powder and glue It is easy to bulge, peel, crack and have a very short service life, such as "scraping white" in the north and "batch of old powder" in Jiangsu and Zhejiang; The medium-sized products are those that meet the standard of general putty This kind of products have been explicitly restricted in Beijing Although their firmness is slightly improved, they are still easy to peel and crack, and their service life is relatively short 821 type putty is a typical one; The best is the water-resistant putty, which is not only solid, without bulging, peeling and cracking, but also has a long service life and does not need to be removed for secondary decoration 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,