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Photoinitiator Concerns Continue to Mount

With key photointiators in short supply, ink manufacturers are coping with major cost and availability issues.

In May 2018, word began to spread about a shortage of key photoinitiators for inks and coatings. On May 4, the European Printing Ink Association (EuPIA) warned of a “potential shortage of photoinitiators,” and during RadTech 2018, held a few days later, ink companies discussed then problems they were seeing, which we reported in a blog and video.   In particular, TPO and TPO-L, important photoinitiators for inkjet inks, UV LED inks, automotive coatings, and wood coatings and flooring, are in sho...

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