Common knowledge of paint: repair the cracks of white wooden door with special paint after polishing

Core tip: Mr Zhang, who likes simple style, uses white mixed accelerator at home, which makes the room look fresh However, after just a few months of use, there were small cracks on the surface of the wooden door Due to the light color of the surface of the wooden door, these cracks were very striking, which made Mr Zhang and his family feel very uncomfortable Cause of cracking Poor paint quality can cause cracks in wooden doors Because the wood has the characteristics of dry shrinkage and wet expansion, if the core material or facing of the mixed accelerator is not dried thoroughly, it is easy to be affected by the change of environmental humidity after the wooden door is put into use When the moisture content of the core material or finish of the mixed accelerator is higher than when Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Paint Home News: like simple style Mr Zhang, the home is all white mixed accelerator, which makes the room look very fresh However, after just a few months of use, there were small cracks on the surface of the wooden door Due to the light color of the surface of the wooden door, these cracks were very striking, which made Mr Zhang and his family feel very uncomfortable Cause of cracking poor paint quality can cause wood door crack due to the wood has the characteristics of dry shrinkage and wet expansion If the core material or facing of the mixed accelerator is not completely dried, after the wood door is put into use, it is easy to be affected by the change of environmental humidity When the moisture content of the core material or finish of the mixed accelerator is higher than the local average moisture content, it is easy to lose water, resulting in deformation, resulting in cracks on the paint surface of the mixed accelerator The average water content in Beijing is about 12% If the core material and finish are dry, the probability of dry shrinkage and wet expansion will be greatly reduced after the surface paint film is closed It is understood that most wood door manufacturers usually do not produce their own core materials or veneers, most of them purchase these raw materials from professional manufacturers, and then process them Therefore, the quality of materials purchased by an enterprise directly determines the quality of its products In order to ensure the complete drying of raw materials, some large-scale wood door manufacturers will carry out secondary drying of the purchased raw materials In addition to the dryness of the wood structure, if the mixed accelerator is applied with a poor finish, the paint surface will crack However, if the paint surface is not completely removed and the wood door finish is exposed, it is difficult to judge by naked eyes whether the crack of the mixed accelerator is caused by the poor quality of the finish or the water loss and deformation of the finish or core material After the repair method is polished, repair with special paint When cracks appear on the surface of the mixed accelerator, contact the manufacturer to repair the paint surface of the wooden door When the wood door manufacturer encounters the crack of finish paint, it usually takes repair measures First, polish the cracked paint surface with sandpaper, and then repair it with professional repair materials In general, such repair will not produce color difference, which will not affect the visual effect of wooden doors With the change of indoor temperature, wood's dry shrinkage and wet expansion are the characteristics of wood, but their properties tend to be stable after the change of four seasons If the cracks on the paint surface appear soon after the installation of the mixed accelerator, and if the cracks do not appear one year after the repair, the similar problems will not appear again But if the wood door still cracks repeatedly, it can only show that the quality of the product itself is not qualified The difference between the mixed throttle and the clear throttle is that the surface treatment mixed throttle and the clear throttle are the most common solid wood composite doors in the market at present The structure of the two is basically the same, they are composed of core material and facing The difference is mainly reflected in the surface treatment, the mixed accelerator is directly painted on the finish, the surface is smooth without wood grain, usually white, milky white, beige and other light colors For the accelerator, a layer of 0.3mm-0.6mm thick solid wood skin shall be pasted on the surface, and varnish shall be painted on the surface of the solid wood skin, so that the texture of the wood can be clearly seen on the surface of the accelerator Generally, the price of mixed throttle is lower than that of clean throttle of the same quality Because there is a layer of natural solid wood skin on the surface of the oil cleaning door, and the process of color repair is added, the cost will be higher than that of the mixed throttle 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 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