Yes, overspray can be buffed out using a machine polisher combined with the right cutting pad and compound. However, it should not be the first step during the car overspray removal phase. Proper decontamination must take place prior, firstly, the overspray needs to be removed, whether it is cement, tree sap, paint or so on. Using a machine polisher first will scratch the paintwork and rip the polishing pad to shreds like sandpaper. We would use the machine polisher after we have properly washed the vehicle only.