The Brady's thermal transfer printer 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. This thermal transfer printer label roll uses polyimide for the label material and permanent acrylic as the adhesive. Matte topcoat is designed to resist solder balls from sticking to the label after exposure to molten wave solder. - This die-cut thermal transfer printer label roll uses polyester for the label material and permanent acrylic as the adhesive. Designed to withstand multiple cycles of harsh condition washes for printed circuit board cleaning processes.