Mounted air line closer to compressor, mixed 8oz of Eastwood low VOC epoxy primer. Gun test and adjustment against a strip of masking paper held against the hangar wall. Initially, the gun spit, dripped, and produced a poor spray pattern. Removed the nozzle and cleaned it in lacquer thinner. Cleaned up the gun and tried again. Was able to obtain a good fan pattern down to 7 psi at the gun. Shot a couple sections of the empennage to good effect. Used the Devilbiss DeKups (https://www.eastwood.com/dekups-24-oz-trial-kit.html) disposable cup and lid system, saving a good bit of cleanup time and aggravation. No isocyanates in the primer, PPE use was gloves, eye protection, disposable coat and organic vapor mask.