Polyonics offers a wide variety of top coats designed to provide ideal printing surfaces for labels and printed electronics. In addition, the top coats can withstand high temperatures, harsh cleaners and solvents typical of the PCB manufacturing process. Polyonics also offers low charging top coats that help safely dissipate static charges and provide low peel voltages during liner removal. All top coats comply with REACH and RoHS initiatives, meet appropriate ASTM, PSTC and select Mil standards, are UL recognized and tested to the UL94 flame retardant standard.
Polyonics top coats include,

Importance of Top Coats


Print Aesthetics - Matte versus Gloss
Matte topcoats - The non-reflective appearance of matte top coats is due to the micro-porous surface of the coating. The matte coating scatters light as opposed to gloss top coats that reflect it. Liquid ink, formed by melting during the thermal transfer printing process, is drawn into the pores of the film by a capillary action that further dries the ink by absorbing its solvents.

Gloss topcoats – The reflectivity of gloss top coats comes from the highly smooth texture of its surface. Gloss top coats reflect more light than they scatter. Often (but not always) resin ribbons are used for printing on glossy substrates.


Colors – The Polyonics product line includes semi gloss topcoats in six standard pastel colors plus matte black. The top coats are RoHS 580 Series compliant and are available in 25µm and 50µm constructions with 125µm thicknesses also available on demand.

For more information on our colored Polyimides visit color polyimides.

PRINTING OPTIONS - Polyonics offers coated label materials that can be printed with ink jet, dot matrix, hot stamp and flexographic technologies and etched with a laser.  When you contact Polyonics customer service or technical service department, let our in-depth knowledge and technical skill go to work for you to enable us to find the optimal cost effective solution for your label requirements.