SINOCURE® CAT-551 is a cationic photoinitiator with high photoinitiator activity, good surface drying, no yellowing, no migration, and no odor. It has a certain absorption at 365/385/395nm and can be used for LED curing.
Compared with the ITX structure in SINOCURE® CAT-550, the DETX structure in SINOCURE® CAT-551 is more environmentally friendly and has lower biological toxicity. It can be used in food packaging to replace Omnicat 550.