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

IGM Omnirad 73 UV Photoinitiator液体

IGM Omnirad 73 is a high-efficiency low-yellowing α-hydroxy ketone Type I free radical UV photoinitiator in the Omnirad series, designed for UV radiation curing systems. It can quickly decompose to generate free radicals when exposed to UV light, efficiently initiating the polymerization of acrylates and unsaturated oligomers. With prominent core advantages, excellent low-yellowing performance

Features Of IGM Omnirad 73 UV Photoinitiator

  1. High-efficiency Type I initiation - Fast free radical generation, high polymerization efficiency, fast curing speed, shortening construction cycle

  2. Excellent low-yellowing performance - No obvious yellowing after curing, not easy to lose light after long-term use, suitable for high appearance scenarios

  3. Multi-system compatibility - Compatible with various acrylate systems, suitable for solvent-based UV formulations, strong versatility

  4. Liquid easy processing - Low viscosity liquid form, easy to add and disperse, no complex process adjustment needed

  5. Benzene-free low-odor environmental protection - Benzene-free formula, extremely low odor, meets environmental compliance, suitable for sensitive scenarios

Typical Applications Of IGM Omnirad 73 UV Photoinitiator

  1. Water-based UV coatings - Water-based UV wood paints and plastic paints, uniform dispersion, strong adhesion and excellent water resistance of cured film

  2. Printing ink field - Water-based screen and flexo inks, fast curing, high printing precision, suitable for various substrates

  3. Plastic coating field - Water-based UV protective coatings for plastic surfaces, good fit, outstanding scratch resistance and weather resistance

  4. Paper coating field - Water-based UV paper coatings, high efficiency curing, improving paper gloss and wear resistance, no residual odor

  5. UV adhesive field - Water-based acrylate UV adhesives, high bonding strength, suitable for water-based bonding scenarios, environmentally friendly and non-irritating

Specifications Of IGM Omnirad 73 UV Photoinitiator

BrandIGM (Omnirad® series)
Chemical Typeα-Hydroxy ketone Type I free radical UV photoinitiator
Chemical Composition2-Hydroxy-2-methyl-1-phenylpropan-1-one
CAS No7473-98-5
Appearance (25℃)Colorless to pale yellow transparent liquid
Purity≥99.0%
Molecular Weight164.20g/mol
Melting Point-8℃ to -4℃
Absorption Wavelength Range240-340nm (in methanol)


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