Thermal Spray Gun

Thermal Spray Gun Lighting

Don't light a gun without a wire in the nozzle. The wire should extend up to about 1/8” beyond the nozzle.  Be sure there is compressed air inside the gas head. (This air cools most thermal spray gun).  Don't operate the gun with wire snubber locked out. If during operation, the wire grip is released with the snubber locked out, the wire may pull back out of the gun. If this happens, the gun flame may flashback through the rear wire guide. The hot tip of a wire and back flash of the flame can cause personal injury.  When you are ready for spraying: Make sure the wire feed is off.  Hold the igniter and open the gas head to fully open (run position).  Pause for about 3 seconds.  Close the valve halfway until you feel it click into the lighting stop.  Spark the lighter in front of the nozzle. The gun will ignite loudly.  Immediately open the valve all the way as soon as the gun lights.

There is no need for an operator to rush the steps required except that the valve must be opened completely immediately after lighting. Remember flammable gas will build up if there is no air movement when gas is flowing.