AEC Air Eraser Compounds AEX compound for fast cutting and etching 6 oz. $6,29 favorite_border Paasche Formulated for use with Paasche Air Erasers.AE compound is meant for use at low psi for erasing color errors or cleaning. AEX compound can be ued at higher psi levels for etching. See at Misterart See all Airbrushes