When the putty dries, many workers paint the wall directly, which is actually a less process. It must be emphasized to the workers that before painting the walls and ceilings, the walls should be cleaned, the dust and excess putty on the walls should be cleaned, the cracks should be handled, and the joints between the walls and ceilings and wood products should be protected to prevent the wood products from being painted. Painting is relatively simple. If the background color of the wall is light, the paint on the ceiling and wall can be brushed twice. If the background color is deep, the paint color to be brushed is light, and it should be brushed several times according to the covering degree of the paint color. But this does not mean that the more times you use the paint brush, the better. The paint brush will peel and crack if used too many times, so it is most appropriate to brush it twice. Some construction teams paint by hand, which is more uniform for skilled workers, but it is also easy for workers with poor skills to paint the walls and leave traces. In order to improve the engineering quality, recently, many construction sites have begun to use painting technology for construction. The quality of this method is indeed easier than manual operation, but the disadvantage is that it wastes more materials. In addition to the wall, there are also painting problems in wooden products such as bookcases (decoration renderings), wardrobes (decoration renderings), bathtubs and TV cabinets (decoration renderings). For wood products, whether ordinary nails or air nails are used, carpenters will leave nail holes on the wood surface. A very important job for painters is to repair nail holes. A good painter will make the nail hole difficult to see at a certain distance, and a painter with poor sense of responsibility will see the nail hole clearly at a close distance, which will not only affect the visual effect of wood products, but also affect the service life of wood products. Therefore, the owner needs to emphasize this process to the workers before painting the wood products. Nitryl paint for wood products has a thin film and should be brushed at least 6 times. And every time you brush a layer of paint, you have to wait for this layer to dry thoroughly, and then clean up the dust on the surface before you can go up and down.