CLEASBY MASTIC ROOF GUN Category: Spray Equipment Product Information Cleasby Mastic Roof Gun with 1/2” high pressure Graco pistol grip spray gun. Related Products GMAX II 7900 STANDARD SERIES Read more HJ4520 COLD PROCESS HYDRAULIC SPRAYER Read more IS4413 TITAN ELASTOMERIC PLUS Read more HJ1802 POWER ROLLER SYSTEM Read more