Abstract: Apparatus and method for the application of a hot-melt resin adhesive wherein an enclosed chamber having a restricted discharge orifice is provided with a valve element for opening and closing said orifice; a non-oxidizing gas is introduced into the chamber at super-atmospheric pressure with a charge of resin adhesive, and heat is applied uniformly to the chamber to cause the adhesive to attain a viscous, flowable condition. The gas under super-atmospheric pressure forces a portion of the flowable resin through the orifice when the valve element is in open position.