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

IGM Omnirad 481 Photoinitiator

IGM Omnirad 481 is a high-efficiency, low-yellowing benzophenone-based photoinitiator from IGM Resins’ Omnirad series. Designed for UV-curable inks, coatings, and adhesives, it delivers rapid surface cure under UVA/UVLED light with excellent compatibility and minimal odor. Ideal for demanding industrial applications requiring superior performance and regulatory compliance.
  • igm omnirad 481 photoinitiator_b4dfd130
  • igm omnirad 481 photoinitiator_b4dfd130

Features Of IGM Omnirad 481 Photoinitiator

  1. Highly efficient Type II photoinitiator based on benzophenone chemistry with excellent reactivity under UVA and visible light sources.

  2. Low volatility and low odor, supporting improved workplace safety and compliance with stringent industrial hygiene standards.

  3. Excellent compatibility with acrylate monomers and oligomers, including multifunctional acrylates and epoxy acrylates.

  4. Good thermal stability enabling extended shelf life and robust performance in high-temperature processing environments.

  5. Minimal yellowing tendency in cured films, ideal for demanding clear-coat and decorative applications.

Typical Applications Of IGM Omnirad 481 Photoinitiator

  1. UV-curable wood coatings for furniture and flooring.

  2. Industrial UV inks for flexible packaging and label printing.

  3. Optical adhesives and protective coatings for electronics and displays.

  4. 3D printing resins requiring balanced cure speed and surface tack-free properties.

  5. Overprint varnishes and topcoats for high-gloss graphic arts applications.

Specifications Of IGM Omnirad 481 Photoinitiator

Chemical TypeBenzophenone derivative
Product FormPale yellow to light amber liquid
AppearanceClear, homogeneous liquid at room temperature
Primary ApplicationsFree-radical UV-curing systems (Type II)
Key FeaturesLow migration, low odor, high reactivity, good solubility
BenefitsReduced post-cure odor, improved surface cure, enhanced formulation flexibility
Storage ConditionsStore in tightly closed containers at 5–25 °C, protected from light and moisture
Regulatory StatusREACH registered; not classified as hazardous per CLP Regulation (EU)


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