Paint knowledge the key points of choosing waterborne wood paint

Core tip: with more and more contact with water-based paint to our life, I think we will not be very unfamiliar with water-based paint, here will introduce some tips for the use of water-based paint I hope I can help you 1 The types and application technologies of waterborne wood coatings are analyzed according to the analysis of waterborne wood lacquer products sold on the market According to the varieties of base materials, the application technology of waterborne wood lacquers is broadly classified as follows: (1) acrylate type: styrene acrylic emulsion and acrylate (modified) milk liquid, suitable for primers and matte finish The coating made of this kind of base material has low relative cost, general hardness and is not easy to produce shrinkage cavity, but its film-forming performance is poor Shenyang steel structure fireproof coating construction expert punde Building Fire Engineering Co., Ltd Recommended introduction: since its establishment, Shenyang punde Construction Fire Engineering Co., Ltd has cultivated a group of professional construction teams with excellent equipment, rich experience and serious responsibility with advanced and scientific management methods and strict engineering quality assurance and after-sales service system It has undertaken a number of fire system installation projects, which has been praised by customers Every idea and special requirement of you will be fully considered by us and fully realized in the construction technology, which will become the cornerstone of our successful long-term development We are looking forward to your invitation, to provide you with quality services and high-quality technical support! All construction coatings have passed ISO9001 Paint Home News: with more and more water-based paint contact with our lives, presumably we will not be very unfamiliar with water-based paint, here will introduce some water-based paint use tips I hope I can help you 1 The types and application technologies of waterborne wood coatings are analyzed according to the analysis of waterborne wood lacquer products sold on the market According to the varieties of base materials, the application technology of waterborne wood lacquers is broadly classified as follows: (1) acrylate type: styrene acrylic emulsion and acrylate (modified) milk liquid, suitable for primers and matte finish The coating made of this kind of base material has low relative cost, general hardness and is not easy to produce shrinkage cavity, but its film-forming performance is poor and its gloss is poor, so it is not suitable for high gloss paint Second, polyurethane dispersions include aromatic and aliphatic polyurethane dispersions, which have excellent yellow resistance and are more suitable for outdoor use They have good film-forming properties, high self crosslinking luster, good wear resistance, and are not easy to produce bubbles and shrinkage cavities But the hardness is general, the price is more expensive, suitable for making bright finish, floor paint, etc; ③ Acrylic modified polyurethane dispersion: it includes the mixture of aromatic, aliphatic polyurethane and acrylate dispersion, which has the advantages of the above two types The cost is relatively moderate It can be self crosslinked and can be used in two-component system, with good hardness, fast drying, wear resistance, good chemical resistance, low yellowing degree or unchanged yellow It is suitable for bright matt paint, primer, outdoor paint, etc; ④ Water based urethane oil: it belongs to single component, similar to oil-based urethane oil, oxidation-reduction drying type When forming the film, it needs to add drier, which is fast drying, good luster, hardness, wear resistance and water resistance, and suitable for bright surface and floor paint; ⑤ water based two-component polyurethane: one is polyurethane dispersion with - Oh; the other is water-based curing agent, mainly aliphatic After the two components are mixed, the water resistance, hardness and fullness of the coating can be significantly improved through the crosslinking reaction, and the gloss can also have a certain effect The comprehensive performance is good, and the coating is not prone to yellowing, which is particularly suitable for outdoor coating 2 In terms of packaging, the waterborne wood coatings in the market have two components: single component and two components, of which the single component accounts for the vast majority; in terms of source of goods, there are original imported products, products produced by foreign brands in China, and products developed and produced by domestic manufacturers themselves The former two accounted for the majority, while the latter had a small share of sales Through the analysis and test of foreign brands, joint venture brands and domestic products, the product performance is as follows (1) the appearance of the product is milky white, yellowish and reddish sticky; 2 Solid content: generally 30% to 45%, much lower than that of solvent type; third, water resistance: aliphatic polyurethane dispersions and waterborne urethane oil are much better than aromatic / acrylic emulsion type; 4 Alcohol resistance: the trend is basically the same as that of water resistance Hardness: the lowest is the acrylic emulsion type, the second is the aromatic polyurethane, the aliphatic polyurethane dispersions and the two component polyurethane and urethane oil are the highest, and the hardness will increase gradually with the extension of time, especially the two-component crosslinking type However, the hardness growth is slow and low, which is far less than solvent type Pencil hardness can reach h has been very few; ⑥ luster: bright is difficult to achieve the gloss of solvent based wood coatings, generally about 20% lower Among them, two components are higher, while urethane oil and polyurethane dispersions are the second, and acrylic emulsion type is the lowest Wear resistance: urethane oil and two-component crosslinking are the best, followed by polyurethane dispersions, and then acrylic emulsion 3 Application technology of waterborne polyurethane paint it is only a matter of recent years that waterborne polyurethane paint, as a new type of green environmental protection product, has entered the Chinese market Its biggest advantage is to solve the problem that domestic consumers pay more attention to the fullness, hand feel and hardness of the paint film, the heat resistance, hot resistance, alcohol resistance, water resistance and pollution resistance of the paint film; It breaks through the weakness of water-based wood paint, and the water-based polyurethane paint is not easy to produce bubbles in the construction, easy to polish, and not easy to be affected by the temperature and humidity In order to comprehensively solve the market application of water-based wood paint, it has laid a solid foundation 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,