There are many advantages to silk screen labels. These include:
Smooth Ink Coating: The biggest advantage screen printing has over other printing processes is its ability to lay down a smooth, VERY thick coating of ink.
Abrasion & Moisture Resistant: Because the ink film thickness is so great this process excels in applications where resistance to weather (outdoors), moisture, abrasion, and chemicals is needed.
Opacity: Due to the thickness of the ink, screen printed inks are more opaque than in other printing processes.