The level of things is high and low, the level of general production and processing is the lowest, the production level with a certain technical content is higher, and the production with the highest level of art is the highest. In ancient Greece, the builders of the buildings were just ordinary construction workers. Later they carved stones into stone statues and they became artists.
In art, music should be an ancient and important one. The piano should be the most important instrument, many other instruments can only be accompanied, while the piano can be solo, and each piece is telling a story. The piano is also the most expensive of the instruments. Its paint is hard and bright, and it looks luxurious and generous, crystal-clear. This painting process is called piano paint.
Piano paint is one of the paint processes. The piano paint process is characterized by a very complicated process. It is necessary to spray 3 to 5 primers on polished and polished boards. After each spray, it is polished with water sandpaper and a cloth. After spraying the primer, it is also necessary to spray 3 to 5 layers of high-gloss finish. Generally, the high-grade piano paint primer and topcoat should add up to 10 layers. The reason why piano paint is called "painting" is because the workpiece is not naturally solidified after spraying, but the workpiece is placed in the paint booth to be electric or far infrared.
Piano paint is characterized by bright colors and can be freely blended according to customer requirements. The piano paint film is full, the thickness of the primer and the top coat can reach 1.5mm, and the floor can be seen by the naked eye. The piano paint has a high hardness and can reach more than 4H. It has the same quality as enamel. When there are stains, it can be wiped with cotton cloth and a little water. The piano is painted and resistant to high temperatures, and a cup with 70 to 80 ° C boiling water is placed on top without problems. The most distinctive feature of piano paint is its high brightness and good mirror finish. Although the brightness of piano paint can not be compared with the mirror, the surface is smooth and smooth, and it can be like a piano. The reflection reflected does not have a little distortion.
The paint used in piano paint consists of three components: basic resin, catalyst and curing agent. Known by the piano paint POLYESTER, the basic resin of the paint is unsaturated polyester resin, commonly known as PE. When these three components are mixed, a highly integrated interlacing reaction occurs to form a film having a certain hardness and fluidity. In order to achieve high brightness and reasonable workability, paraffin and other additives must be added during construction to achieve an extremely high solid content, good aging resistance and plasticity. At the same time, the coating can only have a very low free VOC content and cannot contain any formaldehyde.
It is precisely because of the complexity of the process that the cost of piano paint is extremely high. In the case of cabinets, for example, in the cabinet of 3 to 4 meters, the use of piano paint is at least 5,000 yuan higher than the average paint. But how do you get some cheap "piano paint" cabinets on the market? In fact, most of these cheap cabinet products are PU paint coating, which is the "polyurethane paint painting" process. The polymerization of PE paint is initiated by a free radical. The solvent is styrene and the solid content is close to 100%. Therefore, the sealing property is good and the fullness is high. At present, the best PU paint solid content in China is only about 50%. Compared with the PE paint process, the PU paint process does not have a primer spray and does not need to be placed in an oven to cure at a high temperature. The actual cost is probably only one-fifth of the true piano paint.
There are two ways to distinguish between two paints. In the first method, because the PE paint has high hardness and poor elasticity, the striking paint surface will break, instead of peeling off like PU paint. Another method is to use fire. Since the PE paint is dried at a high temperature, the surface of the paint can be fired for a short period of time without major damage, and the PU paint will be damaged quickly. Both of these methods are destructive, and consumers still have to look more when buying piano-painted furniture. Look at the mirror effect of the furniture surface, and see if it is marked "piano paint", while the English is written PU paint.
Good furniture products have whimsical materials and surging performances, and then have the craftsmanship of the Heavenly Palace, which will reach the height of "artwork".
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