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

IGM Omnirad 250 Photoinitiator

IGM Omnirad 250 is a high-performance benzophenone-type photoinitiator from IGM Resins’ Omnirad series, designed for UV-curable inks, coatings and adhesives. It offers excellent surface cure, low yellowing, and compatibility with acrylate systems. Widely used in digital printing and industrial curing applications due to its efficient free-radical generation under UV-A light.
  • igm omnirad 250 photoinitiator_c16a5cde
  • igm omnirad 250 photoinitiator_c16a5cde

Features Of IGM Omnirad 250 Photoinitiator

  1. High reactivity under medium-pressure mercury lamp UV sources (365 nm dominant).

  2. Excellent surface cure performance with low oxygen inhibition.

  3. Good solubility in common acrylate monomers and oligomers.

  4. Thermally stable up to 120°C, enabling compatibility with warm coating processes.

  5. Low volatility and minimal odor—suitable for enclosed or high-solids formulations.

Typical Applications Of IGM Omnirad 250 Photoinitiator

  1. UV-curable wood coatings requiring rapid through-cure and high gloss.

  2. Plastic coatings for automotive interior trim and electronics housings.

  3. Overprint varnishes and functional topcoats on flexible packaging films.

  4. Industrial inkjet inks demanding fast jetting stability and instant fixation.

  5. 3D printing resins where balanced depth-of-cure and surface hardness are critical.

Specifications Of IGM Omnirad 250 Photoinitiator

Chemical TypeBenzophenone derivative (Type II photoinitiator)
Product FormPale yellow to light amber liquid
AppearanceClear, homogeneous liquid at room temperature
Primary ApplicationsFree-radical UV-curable coatings, inks, and adhesives
Key FeaturesSurface-active, low migration, non-yellowing
Recommended Use Level2–6 wt% in total formulation (varies by substrate and lamp intensity)
Storage ConditionsStore in original sealed container below 25°C, protected from light and moisture
Shelf Life24 months from date of manufacture when stored properly


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