Plastic case painting is a very common working phenomenon. In the previous article, it is mentioned that spray painting is actually the operation of spraying. Spray painting plastic casing is to make its quality more solid and stabilize its own material. When the staff in the process of painting, other irrelevant people can not be involved. Because spray painting is a certain level of attention and standards, a little improper handling will affect the use and control of the product. In order to better understand the process of painting, through the following description will be able to clearly know this series of actions and specifications.             So the question is, what criteria should the staff meet in order to carry out this step?             First, spraying operators must go through safety technology training, without training is not allowed to work. 2. Before painting, all painting equipment and tools must be comprehensively checked to ensure that there is no problem before the work. Three, the ventilation and purification of the painting place should meet the requirements of GB 6415. 4. During the operation, the safety and technical department of the enterprise should appoint special personnel to determine the oxygen content and combustible gas concentration in the air in the confined space. The oxygen content should be above 18% and the combustible gas concentration should be lower than 10% of the lower limit of explosion. Five, the cabin spray painting operation is equipped with at least two people to operate together, if the working place is too narrow, can only accommodate a single operation, the other person should be responsible for monitoring. Six, multiple spray guns working at the same time, must open the spacing (about 5m), and according to a certain, the same direction for spraying. Vii. Special painting operation, the spraying equipment and hose shall be managed by special personnel. If the equipment fails or has abnormal conditions, the personnel in the cabin shall be informed to withdraw outside the cabin and be repaired by maintenance personnel. 8. The high-pressure jet and leakage of airless spray painting will lead to serious injury accidents. After the operation is completed, the spray gun must be withdrawn from the cabin in time and ventilation should be continued until the paint film is completely cured. Ix. After the completion of the painting operation, the workplace should be cleaned up in time, and the remaining paint and solvent should be returned to the warehouse in time. Most importantly, operators must wear protective masks, rubber gloves, eye masks and other related protective equipment.