... .Has good adhesion to many substrates KH720 HOT MELT FILM - A perfect substitute for 3M615 Specification1. Soft and amber ... -color thermal-plastic hot melt film.2. Good adhesion to many substrates including stainless steel, ... /film, special adhesive tape, glue, magnetic tape, steel plates, etc. Our products are widely used in smart cards, electronic tags, electronic ...