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Adhesion Requirements for UV-LED Printing

How necessary are adhesion promoters?

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Generally, UV screen printing does not require additional adhesion promoters because there is a hardener agent mixed into the ink just prior to the printing process. This increases adhesion and works well.

Occasionally, we do run into situations where UV screen printers need exceedingly high adhesion and then we recommend an adhesion promoter. Currently, there are only a few adhesion promoters available that can be jetted through a print head, so the most common application methods are brush, wipe-on, and sprayers (either pump or low-pressure, high-volume sprayer).

All application methods work well – it is normally a decision based on volume. Unfortunately, there is no bulletproof process that guarantees perfect results for UV printing.

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Sean Lanigan

Sean Lanigan has more than 20 years of experience with print, coatings, adhesion, and manufacturing processes. He is the founder and president of Applied Surface Technologies, LLC (AST), a company specializing in coatings and technologies for printing, adhesion, and marketable solutions. AST is the exclusive North American distributor of Pyrosil. He can be contacted at 920-478-2969 or slanigan@appliedsurfacetech.com.

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