涂刷过涂料的墙面经过一段时间后,会出现剥落、色彩不匀、发暗等现象,那么,旧墙面怎样重刷涂料呢? 一、先将老面层的灰尘、污垢和隔离剂彻底清理干净,用砂纸将墙面满磨一遍,再用鸡毛掸子或毛刷刷去表面的浮粉。有些坚硬而未 After painting over the wall of the paint, peeling, uneven color, and darkness will appear after a period of time. How then can the old wall be heavy-brushed? First, the dust, dirt, and release agent of the old surface should be thoroughly cleaned. Clean it up, grind the wall with sandpaper, and use a feather duster or brush to brush the float powder on the surface. Some hard but not