Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

IGM Omnicat 432 UV Photoinitiator

IGM Omnicat 432 is a high-efficiency blended cationic UV photoinitiator in the Omnicat® series, blended with 45% mixed triarylsulfonium hexafluorophosphate salts and 55% propylene carbonate. It is designed for cationic curing of epoxy, oxetane and vinyl ether formulations, efficiently initiates cationic polymerization under UV light, with low viscosity, high solvent resistance, low shrinkage and excellent adhesion, benzene-free and low odor.

Features Of IGM Omnicat 432 UV Photoinitiator

  1. Efficient cationic initiation - Specifically initiates cationic polymerization, stable reaction, excellent curing efficiency

  2. Blended synergistic effect - Blend of salts and propylene carbonate, balancing activity and processability, ready to use

  3. Excellent curing performance - Low shrinkage after polymerization, strong adhesion, high solvent resistance, stable performance

  4. Environmental low-odor adaptation - Benzene-free formula, extremely low odor, meeting high-end environmental and compliance requirements

  5. Low viscosity easy processing - Liquid low viscosity, good fluidity, easy to add and mix, suitable for large-scale production

Typical Applications Of IGM Omnicat 432 UV Photoinitiator

  1. Can coatings field - Various UV cationic coatings for cans, high solvent and corrosion resistance, suitable for food contact-related packaging

  2. Coil coatings field - UV-curable coil coatings, low shrinkage, strong adhesion, suitable for continuous production

  3. Pharmaceutical packaging field - UV inks/coatings for pharmaceutical packaging, benzene-free and low odor, meeting strict compliance requirements

  4. Flexo/screen inks - Cationic flexo and screen printing inks, fast curing, high printing precision

  5. Overprint varnish field - Various UV overprint varnishes, improving surface gloss and abrasion resistance, suitable for high-end printing

Specifications Of IGM Omnicat 432 UV Photoinitiator

BrandIGM (Omnicat® series)
Chemical TypeBlended cationic UV photoinitiator
Blend Composition45% mixed triarylsulfonium hexafluorophosphate salts + 55% propylene carbonate
Alias4,4'-Dimethyl-diphenyliodonium hexafluorophosphate
CAS No68156-13-8 + 74227-35-3 + 108-32-7 (blend components)
Appearance (25℃)Colorless to pale yellow transparent liquid
Density (20℃)1.28-1.32 g/mL
Viscosity (25℃)15-35 mPa·s


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