The main purpose: primer spraying machine is the accessorial equipment in hot spraying construction. Primer is the adhisive material used when use the hot melt paint. Primer has the force avoid the film shell off and enhance the adhisive effect between the film and road surface. The structual features: it is of follow up pressure, no noise, no pollution, small enery consumption and flexible operation. Main technical parameters: Engine: honda 505HP stroke cold oil engine Air pump:0.2 /min flow Pressure:0.6Mpa rated presure, the maximum presure is 0.8Mpa. there is pressure safe valve. Spraying mode; air spraying Flow:3.5L/min Spraying width:100-450mm(adjustable) Spraying speed: 40m/min Pot capacity:40kg Fogure dimension:length 1100mm×extent 950mm×height 960mm Weight of complete machine:110kg.