压缩空气喷涂时,喷嘴方向与基材表面呈90°,距离20～750px,以30～1500px/s的速度匀速喷涂.面漆出现问题时：将问题涂层清理干净直至涂层牢固粘合处,用砂纸打毛底层油漆,并将涂层断层面打磨光滑后,按3.3.2进行清洗.
During spraying by compressing air,keep nozzle and substrate in an agle of 90°,an distance of 20～750px,and an even velocity of 30～1500px/s.In the case that paintcoat has flaws,please rinse the coating layer to its bonding part,and grind the substrate painting into an uneven condition with sandpaper,then polish the breaking part of coating,in the end,rinse it again in a tweaking ratio as 3.3.2