Spray gun for synthetic resin foam - with separate mixing head quickly replaced if clogged with cured resin

摘要

A mixer/spray gun for synthetic resin foam has connections for the mixing/spraying air and for the resin reagents, a mixing chamber and connected nozzle plus tubes and valves to supply washing liq. instead of reagents. The mixing chamber and nozzle are in a separate part of the gun which is connected to the main body of the gun by three disconnectable tubes from the mixing chamber. Arrangement provides quick change of mixing chamber (e.g. when it contains cured resin material).