CLEASBY MASTIC GUN Category: Spray Equipment Product Information CLEASBY MASTIC GUN with 1/2” high pressure ball valve. Cleasby Mastic GunSO4355 Related Products WARMER FOR COLD PROCESS MATERIALS Read more 2,250 PSI SPRAY HOSE Read more CLEASBY MASTIC ROOF GUN Read more DIRECT IMMERSION KIT Read more