Special 100 year anniversary design available for a limited time. Prep materials such as primer, filler and spray putty fulfill an important function within the paint process. Therefore particular attention must be paid to the application of these materials, using a dedicated primer gun. Perfectly apply all sorts of prep materials. The fine atomization and wide spray fan of the SATAjet 100 B help achieve even material distribution, thus saving expensive labor time due to much reduced sanding.