by SpecialChem

Omnicat 250

Technical Datasheet | Supplied by IGM Resins

Omnicat 250 by IGM Resins is a versatile photoinitiator for cationic polymerization of epoxy- or oxetane-based photocurable systems upon light exposure.

It is suitable for surface and through cure.
It is especially suitable to the cure thick and highly pigmented systems.
It is designed for clear and white systems.
It affords minimum yellowing after exposure to sufficient amounts of UV radiation.
It can be used to effectively cure cationic inks and coatings, such as printing, flexographic & screen inks, varnishes, paper, metal, wood, plastic and white base coatings.
The recommended addition level is 1.5-3.0% for white base coatings, 1.5-4.0% for flexographic ink, 1.5-3.0% screen ink, 1.0-1.5% for overprint varnishes as supplied, in combination with 0.5-0.7 % of a photosensitizer, e.g., thioxanthones.
Omnicat 250 has a shelf life of 24 months.

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Product Type

Photoinitiators

Chemical Composition

Blend of Iodonium, (4-methylphenyl) [4-(2-methylpropyl) phenyl]-, hexafluorophosphate (1-) (75%) in propylene carbonate (25%)

CAS Number

344562-80-7, 108-32-7

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