An aerosol container for dispensing adhesives under pressure is retrofitted with an adapter means for preventing clogging of the discharge valve with old adhesive after use. The adapter means comprises an interior sleeve inserted within an exterior dispensing tip where the assembly is retrofitted into the discharge valve of the aerosol container. A trigger mechanism attached to the top of the aerosol container engages the aerosol can discharge valve to facilitate bias engagement of the discharge valve of the aerosol container.