An alpha-aminoketone Type I photoinitiator that fragments under UV light to start free-radical cure of acrylate and other unsaturated systems. Its near-UV absorption makes it effective in white and pigmented formulations, where it drives cure down through the film rather than only at the surface
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Through-cure photoinitiator for white and pigmented UV inks and coatings
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Radical initiator for acrylate and methacrylate UV-curable formulations
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Photoresist and solder-mask cure in electronics manufacturing
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Co-initiator partner in dual-photoinitiator UV 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-Benzyl-2-(dimethylamino)-1-(4-morpholinophenyl)butan-1-onePhotoinitiator 369PI 369Comparable to Irgacure 369Comparable to Omnirad 369
Full Description
This alpha-aminoketone is one of the standard high-efficiency photoinitiators for pigmented UV-curable formulations. On exposure it undergoes Norrish Type I cleavage to generate radicals that initiate polymerization of acrylate and methacrylate monomers and oligomers. Because its absorption overlaps the window where titanium dioxide and many pigments stay relatively transparent, it cures opaque white and colored systems that surface-only initiators leave soft underneath. Common uses include screen and offset UV inks, pigmented coatings, photoresists and solder masks, usually in combination with a co-initiator or a second photoinitiator to balance surface and through cure. This material carries a harmonized reproductive-toxicity classification 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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