A high-activity alpha-aminoketone Type I photoinitiator used to push cure through dark and heavily pigmented UV formulations. It cleaves under near-UV light to generate radicals, and its efficiency makes it a frequent choice where thicker or more opaque films would otherwise undercure beneath the surface
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Fast through-cure of black and heavily pigmented UV inks and coatings
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Solder-mask and screen-ink cure in industrial printing
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Radical initiator for acrylate and methacrylate UV systems
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High-activity partner in dual-photoinitiator packages
Safety & Handling
Full SDS available on request
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
alpha-Aminoketone photoinitiator2-(Dimethylamino)-2-(4-methylbenzyl)-1-(4-morpholinophenyl)butan-1-onePhotoinitiator 379PI 379Comparable to Irgacure 379Comparable to Omnirad 379
Full Description
This is the more active relative of the standard morpholinophenyl aminoketone initiators, designed for fast through-cure of pigmented and dark systems. It undergoes Norrish Type I cleavage on UV exposure to initiate free-radical polymerization of acrylate and methacrylate monomers and oligomers. Formulators reach for it in black and heavily colored UV inks, solder masks, screen inks and pigmented coatings where surface-curing initiators leave the underlying layer tacky. It is commonly used alongside a second photoinitiator and co-initiators to balance surface and depth cure. The material carries suspected-reproductive-toxicity and aquatic classifications and must be handled per its safety data sheet
Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.
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