The present invention relates to an improved apparatus and method for delivering a coating substance and to an improved apparatus for delivering a powder coating to glutinous products such as confectionery/bakery, gum and dough-like products in a manufacturing and/or packaging procedure. Chewing gum is typically produced by combining chewing gum components, extruding and subsequently rolling a gum composition into a uniform flat sheet of a desired thickness and width. During processing, the extruded material must pass through a series of rollers to produce the ultimate product. In a conventional process, a rolling compound or powdered non-stick agent may be applied to the sheet during processing to avoid fouling of the rollers by a tacky material. Present systems for the application of dusting are inefficient and lead to the loss of much powder. The present invention seeks to provide an improved system.