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

IGM Omnirad 81 Photoinitiator

IGM Omnirad 81 is a high-performance benzophenone-based photoinitiator from IGM Resins’ Omnirad series, optimized for UV-curable inks, coatings and adhesives. It offers excellent surface cure, low migration, and compatibility with acrylate systems—ideal for food-contact and packaging applications requiring regulatory compliance.
  • igm omnirad 81 photoinitiator_38afebaa
  • igm omnirad 81 photoinitiator_38afebaa

Features Of IGM Omnirad 81 Photoinitiator

  1. Highly efficient free-radical photoinitiator for UV-curable coatings and inks.

  2. Excellent surface cure performance, even under low-intensity or inert-atmosphere conditions.

  3. Low yellowing tendency, supporting high-gloss and color-stable final films.

  4. Good compatibility with common acrylate monomers and oligomers, including multifunctional acrylates.

  5. Non-migrating structure contributes to improved regulatory compliance in sensitive applications.

Typical Applications Of IGM Omnirad 81 Photoinitiator

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

  2. Industrial and decorative metallic effect inks for packaging and labeling.

  3. Screen and flexographic printing inks requiring rapid through-cure.

  4. Clear overprint varnishes for paperboard and flexible packaging.

  5. Electronic encapsulants and conformal coatings demanding low shrinkage and high adhesion.

Specifications Of IGM Omnirad 81 Photoinitiator

Chemical TypeAlpha-hydroxy ketone
Product FormPale yellow to light amber liquid
AppearanceClear, homogeneous liquid at room temperature
Primary ApplicationsFree-radical UV-curable coatings, inks, and adhesives
Key FeaturesSurface cure efficiency, low volatility, low odor
BenefitsReduced oxygen inhibition, fast reactivity under UVA (320–390 nm)
Storage ConditionsStore below 30°C in original sealed container, protect from light
Regulatory StatusREACH registered; compliant with EU Directive 2009/148/EC for occupational exposure


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