Common knowledge of paint: how to simply test the quality of paint

Core tips: the commonly used paints in decoration are: 1 Oil cleaning: mainly used for primer before painting 2 Original paint: also known as lead oil, it is made by mixing and grinding pigment and dry oil It is mostly used to mix putty 3 Blending paint: also known as blending paint, it can be divided into grease paint and natural resin paint 4 Varnish: also known as fanlishui, divided into oil-based varnish and resin varnish There are ester varnish, phenolic varnish, alkyd varnish, nitrocellulose varnish and shellac varnish Good luster, fast film formation and wide application 5 Enamel: it is made by grinding varnish and pigment There are two kinds of commonly used enamel: phenolic enamel and alkyd enamel 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 commonly used in the paint are: 1, oil: mainly in the brush paint before the primer 2 Original paint: also known as lead oil, it is made by mixing and grinding pigment and dry oil It is mostly used to mix putty 3 Blending paint: also known as blending paint, it can be divided into grease paint and natural resin paint 4 Varnish: also known as fanlishui, divided into oil-based varnish and resin varnish There are ester varnish, phenolic varnish, alkyd varnish, nitrocellulose varnish and shellac varnish Good luster, fast film formation and wide application 5 Enamel: it is made by grinding varnish and pigment There are two kinds of commonly used enamel: phenolic enamel and alkyd enamel 6 Antirust paint: it is divided into oil antirust paint and resin antirust paint 7 Emulsion paint: the film has certain air permeability and alkali resistance After drying, the paint film does not blister, discolor or stick It is mostly used for interior wall finishing It is non-toxic to human body and non polluting to environment In the family decoration, it is generally divided into four types: matte, semi gloss, medium gloss and high gloss The matte and semi gloss are generally used in living room and bedroom; the medium gloss is generally used in door and window frames, hanging mirror lines and areas with large wear, such as bathroom and kitchen; the high gloss is used in the decoration of door and window frames According to the quality, it can be divided into water-based paint and oil-based paint Water based paint is generally used for walls, and oil based paint is used for decorative panels, lines and metal surfaces How to identify green and non green paint products: you can check whether this product explicitly does not add lead and mercury, whether it is tested for toxicity, whether it has a national environmental label (CCEL) and other aspects to confirm Identification method of true and false paint: 1 Check whether there is factory name, address, registered trademark on the package, and whether there is a test report from the quality supervision department If the explanation is unclear, please do not buy Key to see the factory certificate and the original inspection report of the quality supervision department 2 Check whether the product package is in good condition and whether there is too much noise when shaking the paint cylinder Large noise indicates that the quantity is not enough You can check the weight of a barrel of paint against the product packaging instructions 3 Check whether the printed matter is clear and delicate, and whether the packaging pattern is clear and delicate 4 After opening the paint cylinder, check whether there are impurities on the surface and whether it is clear as a whole 5 Stir to see if there are lumps 6 Whether the smell is pungent 7 See whether there is discoloration and yellowness in the painting effect To sum up: there are many paint brands, on the one hand, we can't be greedy for cheap, on the other hand, we can't only know foreign brands Now some domestic paints have reached international standards And the price is only 1 / 2 or 1 / 3 of the imported products, so it is more suitable for the majority of the working class to choose cheap and good domestic paint If you want to buy genuine coatings of several brands, such as Cr, Cardan, 3a, Hualong, Lehua, Maori chemical, Lester, and jialibao Suggest you: understand the brand, to the standard market or store to buy In addition, you said: "how can primer and finish match best? Can you use different brands?" we suggest you: choose the same brand, do not mix How to calculate the paint consumption? For the example of paint consumption calculation of ICI products, the first step is to calculate the painting area With the painting area, divide the painting area by the coating area of each liter of paint to obtain the required paint consumption For general interior wall painting, there is an empirical formula to calculate the painting area: the amount of paint required for one layer of painting is liter = (building area x2.5) / painting area per liter For example: for a new house with two rooms and one hall of 80 square meters, the painting area is about 200 square meters Each liter of 5-in-1 can be painted with 13-16 square meters, and a barrel of 5-in-1 can be painted with two layers of wall of about 40 square meters, so the painting of this room, including the ceiling, requires a total of 5 barrels of 5-in-1 emulsion paint 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,