中固化学® PSS-DAA Et is a low-yellowing, long‑wavelength cationic photosensitizer specifically developed for UV-LED curing systems. It efficiently sensitizes 阳离子光引发剂s, enabling high curing speed while significantly reducing yellowing of the cured film. It is particularly suitable for transparent or light‑colored UV curable systems where optical performance and yellowing resistance are critical.
