Paint knowledge introduction to wood paint

Core tip: wood paint refers to a kind of resin paint used on wood products, including polyester, polyurethane paint, etc., which can be divided into water-based and oil-based According to luster, it can be divided into high gloss, semi matte and matte According to the use, it can be divided into furniture paint, floor paint, etc Let's take a look at the introduction of wood paint Brief introduction of wood paint 1 Nitrocellulose paint is a common paint for wood and decoration Nitrocellulose is the main film-forming material of nitrolacquer, which is composed of alkyd resin, modified rosin resin, acrylic resin, amino resin and other soft and hard resins Nitrocellulose paint can be divided into four types: external varnish, internal varnish, wood varnish and various enamel (1) nitroso Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Paint Home News: wood paint refers to a kind of resin paint used on wood products, including polyester, polyurethane paint, etc., which can be divided into water-based and oil-based According to luster, it can be divided into high gloss, semi matte and matte According to the use, it can be divided into furniture paint, floor paint, etc Let's take a look at the introduction of wood paint Brief introduction of wood paint 1 Nitrocellulose paint is a common paint for wood and decoration Nitrocellulose is the main film-forming material of nitrolacquer, which is composed of alkyd resin, modified rosin resin, acrylic resin, amino resin and other soft and hard resins Nitrocellulose paint can be divided into four types: external varnish, internal varnish, wood varnish and various enamel (1) Nitrocellulose varnish for external use: it is composed of nitrocellulose, alkyd resin, flexible agent and some ester, alcohol and benzene solvents, with good gloss and durability of the film, which can be used for outdoor metal and wood surface finishing (2) Nitrocellulose varnish for internal use: it is composed of low viscosity nitrocellulose, glycerin rosin ester, non drying oleic acid resin, flexible agent and a small amount of ester, alcohol and benzene organic solvents The coating film is fast drying, bright and poor outdoor weather resistance It can be used for indoor metal and wood surface coating (3) Nitrocellulose wood varnish: it is made of nitrocellulose, alkyd resin, modified rosin, pliable agent and appropriate amount of ester, alcohol and benzene organic volatile The coating is hard and bright, and can be polished, but it has poor weather resistance It can only be used for indoor wood surface finishing (4) Nitroalkyd enamel of various colors: it is made up of nitrocellulose, pentaerythritol resin, pigment, pliable agent and appropriate solvent The coating film is dry fast, smooth and flat, with good weather resistance, but poor wear resistance It is suitable for coating metal and wood surfaces indoors and outdoors 2 Polyester paint polyester paint is also called unsaturated polyester paint, it is a multi-component paint, which is made of polyester resin as the main film-forming material The film of polyester paint is full and thick with hard surface Polyester paint also has a variety of varnish, called polyester varnish During the construction of polyester paint, curing is required, and the proportion of these curing agents accounts for one third of the total proportion of the paint These hardeners, also known as hardeners, are mainly TDI (toluene diisocyanate) These TDI in the free state will turn yellow, not only making the furniture paint surface turn yellow, but also making the adjacent walls turn yellow, which is a major disadvantage of polyester paint The advantages of polyester paint in the 1990s, polyester paint introduced into China, soon replaced varnish, become the main paint for furniture There are many advantages of polyester paint, not only the color is very rich, but also the thickness of the paint film is large It can be sprayed two or three times, and the base material can be completely covered, so furniture can be directly brushed with polyester paint on the density board, and the requirements for the base material are not high Polyester paint film has excellent comprehensive performance Because of the use of curing agent, the hardness of the paint film is higher, hard and wear-resistant, with high abundance It is resistant to damp heat, dry heat, acid and alkali oil, solvent and a variety of chemicals, with high insulation Varnish has light color, high transparency and glossiness, good light and color retention performance, good protection and decoration The flexibility of unsaturated polyester paint is poor, and it is easy to crack under stress Once the paint film is damaged, it is not easy to repair, so attention should be paid to the protection of furniture when moving The disadvantages of polyester paint are difficult to prepare, and the proportion of accelerant and initiator is strict The activation period after paint preparation is short, which must be completed within 20-40min, otherwise it will be gelled and scrapped, so it is necessary to use it as it is prepared and how much it is used In addition, its repair performance is also poor, and the damaged paint film has traces after repair During the construction of polyester paint, curing is required, and the proportion of these curing agents accounts for one third of the total proportion of the paint These hardeners are also called hardeners, and their main component is TDI (toluene diisocyanate) These TDI in the free state will turn yellow, not only making the furniture paint surface turn yellow, but also making the adjacent walls turn yellow, which is a major disadvantage of polyester paint At present, yellow resistant polyester paint has appeared on the market, but it can only be used as "yellow resistant", which can not be completely prevented from turning yellow In addition, the free TDI beyond the standard will cause harm to human body The harm of free TDI to human body is mainly sensitization and stimulation, including pain and tears, conjunctival congestion, cough and chest distress, asthma, red papule, maculopapular rash, contact allergic dermatitis and other symptoms The international limit standard for free TDI is below 0.5% About the type of wood paint for you to introduce here, I hope to help you! 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