考虑到客车的使用寿命约为40年。故拟订了对外部油漆系的要求清单: 涂料系的寿命底漆,包括喷涂腻子应维持40年。在此期间涂层翻新不得超过2次,即经15～20年重涂一次。面漆装饰要求的光泽度约为60(60°)。这种光亮水平可以遮蔽外墙板的不平度,该不平度在较高的光泽度情况下变得很明显。必须保证每辆客车的腻子和装饰涂料由100公斤减 Taking into account the service life of the bus is about 40 years. Therefore, a list of requirements for the external paint department has been drawn up: The paint system’s life primer, including paint putty, should be maintained for 40 years. Refurbishment of the coating during this period shall not exceed 2 times, that is, after 15 to 20 years recoating time. Top coat finish requires a gloss of about 60 (60 °). This luminous level can mask the unevenness of the facade panel, which becomes noticeable at higher gloss levels. Must ensure that each bus putty and decorative paint by 100 kg less