303, 304 and 305 are polyester based hot melt powder adhesives used to improve the adhesion of plastisol-based heat transfers. 303 is a Fine Grain adhesive, consisting of 1 to 80 microns particle size. 304 is a Medium Grain, with particle size of 60 to 200 microns. 305 is a Fine Grain TranStretchT adhesive, which has better elongation properties than 303 or 304.
