Abstract: A warming tray is provided for holding and preheating removable heating cartridges of hot glue guns. The heating cartridges include electrically powered heating elements and releasable interfaces for releasably connecting the heating elements to a power supply. The warming tray includes a platform having a drip pan, and plurality of heating cartridge stations which are spaced apart and extend adjacent to the drip pan. Each of the heating cartridge stations has a power interface member for releasably connecting to a releasable interface of one of the heating cartridges to provide electric power to the heating element. The heating cartridge stations have lineally extending, upwardly protruding portions which define alignment members for engaging within an alignment channel formed into the heating cartridges. A mounting rail extends across the platform, parallel to and spaced apart from the drip pan.

Abstract: An adhesive composition is comprised of a mixture of an EVA copolymer and two tackifying resins, a high temperature tackifying resin and a low temperature tackifying resin. The viscosity of the adhesive composition is between 2,000 cps to 80,000 cps over a temperature range of 250.degree. F. to 380.degree. F. The composition comprises 60% by weight of the copolymer, 15% by weight of the low temperature tackifying resin and 25% by weight of the high temperature tackifying resin.