Polyonics introduces 1 and 2 mil color polyimide labels. The labels are coated with a permanent pressure-sensitive acrylic adhesive and a high opacity, medium gloss topcoat available in six tinted colors ¾ pink, yellow, orange, blue, green and violet. They are thermal transfer printable and scan with both visible and IR scanners. Barcode labels made from the materials reportedly demonstrate excellent performance in lead-free wave solder environments, which range from 260º to 290ºC.
 
Designed for barcode or alphanumeric identification of PCBs or electronic components, can withstand mixed circuit board processes, on either the top or bottom side of the board. Said to have excellent resistance to harsh fluxes, cleaning agents, saponifiers and wave solder environments, and resist common methods of cleaning.
 
Polyonics developed the labels, which will survive both standard and lead-free processes on top or bottom side of the board, for manufacturers looking to color code production/process lines.   Some companies choose to use the plain white polyimide labels for standard “non-compliant” subassemblies, and a color-coded label (e.g., pink, yellow, orange, blue, green or violet) for the compliant products. 
 
Polyonics Asia Ltd., polyonics.com