Labels are simple and economical, and they can accommodate a lot of information. However, labels can be labor-intensive to apply, and they take up space. They’re also susceptible to damage. Like labels, heat shrink tubing can be printed with text and graphics—and they provide the additional benefit of environmental and electrical protection. On the other hand, heat shrink tubing is expensive, and it, too, can be labor-intensive to apply. Hot stamp marking produces durable and legible markings on soft and hard insulation materials. However, it’s slow and inflexible. And, because it creates an embossed imprint, hot stamping could adversely affect the integrity of thin insulation. Laser marking is fast and flexible, and it produces durable marks on a range of insulation materials. On the down side, laser marking equipment is very expensive. Ink-jet printing offers many of the advantages of these other methods, but few of their limitations. This noncontact method is fast, flexible, inexpensive and easy to maintain. Ink-jet printers can be integrated before or after automatic cutting and stripping equipment for continuous production. Printing takes place on the fly—that is, while the...