AP-2 Air Purge Spray/Pour GunAP 2 Air Purge Spray Pour Gun The pioneering, patented technology behind the design of the AP 2 Spray Gun continues to demonstrate PMCs commitment to excellence in our products, our market and to our customers. It incorporates a patented separate chamber and Pattern Control Tip (PCT) giving the option to create a variety of spray patterns as well as the ability to create different back pressures to custom mix foam and coatings. In addition, an