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Advantages and disadvantages of water-based wood paint and solvent based wood paint

advantages and disadvantages of water-based wood paint and solvent based wood paint

March 15, 2013

[China paint information] there are many brands of water-based wood paint in the market. Many domestic and foreign enterprises are very good at this emerging market, and have joined this upgrading trend. However, due to the high technical requirements of water-based paint in hardness, plumpness and other properties, General enterprises do not have such R & D capabilities, resulting in many enterprises gradually sprouting retreat after early investment. Moreover, some enterprises, out of a speculative mentality, simply introduced the theory that the performance of water-based paint should be flawed because of environmental protection, which pushed immature water-based paint products to the market, seriously interfering with the healthy development of the water-based paint market. This is also why some people in the decoration industry also hold the view that although water-based paint is environmentally friendly, the film quality is not good

water based wood paint mainly includes the following categories according to its main components:

I. water based wood paint with polyacrylate lotion as the main component: polyacrylate lotion is the main component of wall emulsion paint, but the wall and wood are very different, and the requirements for polyacrylate lotion are also very different. With conventional polyacrylate lotion as the film-forming material, the latex paint has excellent performance in painting the wall, However, painting on wood may not form a paint film that can meet the requirements. The polyacrylate lotion used on the water-based wood paint is different from the polyacrylic acid lotion used on the wall in terms of particle size, glass transition temperature, emulsification system, etc. the main characteristics of this water-based wood paint are good adhesion, which will not deepen the color of the wood, but poor wear and chemical resistance, and general comprehensive performance. It can meet the general decoration requirements. But now some water-based wood paint products are produced with lotion for ordinary wall paint, which has poor performance, forming the impression of poor film quality of water-based wood paint

II. The water-based wood paint with the composition of acrylic acid and polyurethane as the main component overcomes the characteristics of the first type of water-based paint to a certain extent, and its wear resistance and chemical resistance are greatly enhanced

III. pure polyurethane water-based paint has excellent comprehensive performance, high fullness, high film hardness, wear resistance and even more than oil-based paint. It has obvious advantages in service life and color allocation. But the price is relatively high

the following is the comparison between water-based wood paint and oil-based wood paint

first, compared with environmental protection and health, water-based wood paint has an absolute advantage

(1) organic volatile content: due to its ultra-low VOC content (lower than the national mandatory standard of 200mg/l), water-based wood paint is a truly non-toxic and tasteless high-tech environmental protection product. However, nitrocellulose paint and polyester paint add organic solvents, and their products contain benzene, toluene, xylene and their derivatives, so polyester paint and nitrocellulose paint have high content of organic volatile matter and poor environmental protection performance

(2) flammability: water based wood paint uses water instead of organic solvent, and its products are safe and non combustible. The risk factors and troubles in production and circulation are greatly reduced. Nitrocellulose paint and polyester paint contain benzene, xylene, acetone, solvent gasoline and Tianna water, all of which are highly flammable

(3) pungent smell: the water-based wood paint uses water instead of organic solvent, and its products will not produce any pungent smell when applied. Nitrocellulose paint and polyester paint contain organic solvents, which will volatilize into the air during brushing and drying, directly stimulating human sensory organs

(4) check in time after painting: the waterborne wood paint has the advantages of less brushing times, fast drying, easy painting, and no time limit after painting. You can check in after painting. Nitrocellulose paint and polyester paint will volatilize harmful gases in the drying process because of their organic solvents. Therefore, houses decorated with nitrocellulose paint and polyester paint can not be directly occupied after painting, and they need to wait for a period of isolation time

II. Product 1. It is a transparent amorphous thermoplastic engineering plastic. Its quality and performance are compared, and its comprehensive performance is the same.

(1) hardness: Hongchang waterborne wood paint can meet the normal use needs of consumers when the paint film is completely dry because it uses the advanced hybrid compound of acrylic acid and polyurethane as the main component system; Ordinary polyurethane paint will be put into production in the near future due to the addition of organic curing agent, so the film hardness of ordinary polyester paint is the highest; Nitrocellulose paint needs to be brushed many times, and the hardness of its paint film is not very ideal

(2) feel and fullness: Although polyester paint has the best effect on the feel and fullness of the paint film, the technology of water-based wood paint is developing day by day, and the feel and fullness have been greatly improved since the tum team created the free movement painting at the beginning

(3) wear resistance, yellowing resistance and durability: Hongchang waterborne wood paint adopts the hybrid compound of advanced acrylic acid and polyurethane as the main component system. The surface hardness, wear resistance and flexibility of the paint film are ideal, and it will not turn white due to collision; No yellowing, and the paint film remains clear and transparent for years; 800 hours of artificial aging resistance, ultra long outdoor durability. However, nitrocellulose paint and polyester paint are easy to collide and turn white, easy to turn yellow, and unable to maintain the effect for a long time

III. The comparison between construction and cost is basically the same

(1) ease of Construction: water-based wood paint can be diluted with water without adding Tianna water. 2. The friction is relatively large, and the service life is short, which is easy to be used in direct construction; Nitrocellulose paint and polyester paint need to add Tianna water or related curing agent, and must be in accordance with the fixed proportion. Therefore, nitrocellulose paint and polyester paint need the guidance of professionals during the construction process

(2) paint waste: after the use of water-based wood paint, the remaining paint can be stored in a cool place to continue to save; Due to the addition of curing agent, polyester paint can only be used once, and the remaining paint will be wasted

(3) repairability: wood furniture painted with water-based wood paint can be directly covered and painted during repair; When repairing wood furniture with nitrocellulose paint and polyurethane paint, the old paint film must be polished off with sandpaper before painting

from the above points of view, the advantages of water-based wood paint are clear at a glance. However, 95% of the dealers selling oil-based wood paint in the paint market, and the scale of water-based wood paint dealers is far less than that of oil-based wood paint; In the long run, water-based wood paint has hit the pulse of the future development of the home decoration coating market - environmental protection, so it is just around the corner that water-based wood paint will become a rapidly rising emerging force

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