The Brady's thermal transfer printer 4 row label roll. These items come in a variety of shapes and sizes to accommodate many situations. One of the important components to selecting the right product is the proper label and adhesive material. Used for electronic PCB and component identification, bar code label and rating plates, glass, thermoset polyester plastic and polyvinyl fluoride plastic surfaces to support solar panel identification applications. - This die-cut thermal transfer printer 4 row label roll uses polyester for the label material and permanent acrylic as the adhesive. UL Recognized for Outdoor Use on glass, thermoset polyester plastic and polyvinyl fluoride plastic surfaces to support solar panel identification applications.