Coating knowledge: types and introduction of putty

Core tip: Decoration involves a lot of materials, putty is one of them, mainly used to level the wall, but also indispensable before the wall coating However, there are many kinds of putty, such as waterproof putty, crack resistant putty, mildew resistant putty and so on How to distinguish the types of putty? Master Zhong is a simple and honest decoration painter, but he is very familiar with putty materials Let's also know: what is putty? Putty (mud filling) is a kind of flat wall surface Decorative material is a thick paste coating, which is an essential product before painting Application 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: Decoration involves a lot of materials, putty is one of them, mainly used to level the wall, is also indispensable before the wall paint However, there are many kinds of putty What you usually hear are waterproof putty, crack resistant putty, mildew resistant putty, etc How to distinguish the types of putty? Master Zhong is a simple and honest decorator, but he is very familiar with putty materials Let's also know: what is putty? Putty (filling mud) is a decorative material for leveling the wall surface, is a thick paste coating, and is an essential product before coating Apply to the primer or directly to the object to remove the uneven defects on the surface of the object It is made up of a small amount of paint base, auxiliaries, a large number of fillers and a certain amount of coloring pigments, mainly including iron red, carbon black, chrome yellow, etc The fillers are mainly calcium bicarbonate, talcum powder, etc It can be used to fill the working surface with local depression or scrape off the whole surface It is usually applied to the surface of the primer layer after the primer layer has dried completely Good adhesion and no crack during baking are required The variety of putty: 1 At present, the putty varieties sold on the market are water-resistant putty and general putty, which is called wall putty According to the shape, it can be divided into powder, paste and two-component: Powder: it is a white powder product composed of cementitious materials, fillers and additives Paste: it is a white paste product made of synthetic resin emulsion and filler Two component: it is composed of glue liquid and white powder 2 The commonly used putty can be divided into three categories according to different engineering projects and different purposes: old rubber powder putty: it is made of old powder, chemical glue, gypsum powder and bone glue, and is used for making water-based paint, flat top inner lubricating oil surface putty: it is made of oil-based varnish and gypsum powder, and it is used for oil-based paint of steel wood doors and windows and other projects Glue oil surface putty: it is made of oil-based varnish, dry old powder, chemical glue and gypsum powder It is used for the flat top wall of the original paint 3 Putty powder can be divided into external wall putty powder and internal wall putty powder according to the purpose 4 Putty powder can be divided into: waterproof putty, flexible putty, crack resistant putty, etc 5 According to chemical composition: one component putty: polymer + filler (high PVC interior wall coating) multi component putty: polymer (one component / two components) + cement + filler powder putty: cement + filler + dispensable polymer putty Cement putty: the putty with Portland cement as the main material is cement putty, characterized by high strength and hardness, but the fatal disadvantage is that it is rigid, brittle and easy to crack It is mainly used for external walls (or internal walls) It is characterized by high surface strength Crack resistant putty: the strength is not so high, but it can resist wall cracking and prevent cracks Water resistant putty: water resistant putty is a kind of building putty, especially a kind of putty that can reach the type N in the standard of putty for building interior (JG / t3049-1998), that is, the standard of water resistant putty Putty for building interior (JG / t3049-1998) is a minimum standard that must be met by the product of putty for building interior at present All putty that fails to meet the requirements of the standard is unqualified, so it is prohibited to sell and use Big white putty: it is the big white powder that we often say, also known as talcum powder and putty powder It is the common material for wall leveling in family decoration Generally, cellulose, white emulsion and water are added into the big white powder, and it is kneaded into a thick shape to cover the wall surface and roof In order to prevent its cracking and falling off, a layer of interface agent can be applied on the bottom layer Flexible putty: the flexible putty is made of high-quality cement, filler, synthetic polymer and selected additives According to the different flexibility and waterproof performance of the putty, it can be divided into common external wall putty, flexible crack resistant putty, flexible external wall putty and waterproof external wall putty When using, add 30% water and stir evenly It can be constructed normally under the weather of sun exposure, with the advantages of high bond strength, smooth surface, water resistance and moisture resistance It is suitable for cement mortar, concrete, gypsum board, etc as well as the exterior wall of all kinds of buildings Elastic putty: "elastic" means to have a certain tension Elastic putty is mainly used to mend the cracks on the wall Because it has certain tension, the cracks on the wall are affected by temperature / humidity / external force, and then change, and the wall will not have cracks However, there will be a gap beyond a certain limit It is white cement + talc + cellulose +2488+ elastic acrylic emulsion, which is generally used for indoor walls requiring certain musical effects or sound insulation Putty is one of the essential materials for wall decoration, which plays an important role in wall decoration, and putty with different functions can be selected according to different needs The relevant knowledge of putty types is shared here with you, hoping to help you Please pay attention to the wechat public account of paint network for more information [focus on WeChat official account "paint net"; pay attention to surprises, scan code to see if your husband is selling paint.. 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