Polyurethane foam gun The foaming gun of the polyurethane spraying machine adopts metal friction pairs, few wearing parts, dual-piston brake, core grabbing can be used interchangeably, mixing effect is good, and flow rate is large. Light weight, easy operation, self-cleaning air, dual-purpose gun for spraying and irrigation, atomization is more even and finesize: Spray distance: 200mm Spray amount: 150ml/s