SpeedCure 500 is a blend of Norrish Type I and Norrish Type II photoinitiators from the hydroxyacetophenone and benzophenone families, with an absorption maximum at 249 nm. SpeedCure 500 provides high reactivity and surface cure when used at 0.5-5 wt% and combined with an amine synergist in UV curable formulations.
CAS no. 947-19-3, 119-61-9
A mixture of 1-hydroxycyclohexyl phenyl ketone and benzophenone
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