SpeedCure TPO-L is a liquid Norrish Type I photoinitiator from the phosphine oxide family, with absorption maxima at 274, 290 and 370 nm. SpeedCure TPO-L provides high reactivity and depth cure when used at 0.5-5 wt% in UV and LED curable formulations.
Clear Coatings, Depth Cure, LED, Low Yellowing, Pigmented Systems
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