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

IGM Omnirad EHA Photoinitiator

IGM Omnirad EHA is a high-efficiency tertiary amine UV photoinitiator synergist in the Omnirad series, designed for UV free radical curing systems. Its core component is 2-Ethylhexyl 4-(dimethylamino)benzoate, a key auxiliary additive in UV curing reactions. When used with Type II photoinitiators, it can synergize efficiently, promote free radical generation, reduce the impact of oxygen inhibition, and quickly drive the polymerization of acrylates and other unsaturated oligomer

Features Of IGM Omnirad TPO-L UV Photoinitiator

  1. High-efficiency Type I initiation - Acylphosphine oxide structure, high free radical initiation efficiency and excellent deep curing effect

  2. Easy liquid processing - Clear yellow liquid, easy to add, good fluidity, accurate measurement, suitable for continuous production

  3. Low-yellowing and weather resistance - No obvious yellowing after curing, excellent weather resistance, better than traditional TPO, suitable for high appearance scenarios

  4. Broad-spectrum compatibility - Compatible with solvent-based and water-based UV systems, soluble in various coating solvents and UV monomers

  5. Excellent compounding performance - Can be compounded with various photoinitiators to optimize curing performance, suitable for transparent, pigmented and other formulations

Typical Applications Of IGM Omnirad TPO-L UV Photoinitiator

  1. UV ink field - Offset, screen, flexo inks, suitable for wood, metal, plastic and other substrates, high printing precision

  2. Coating field - Wood, metal, plastic UV coatings, uniform curing, improving coating wear resistance and decorativeness

  3. Adhesive field - Universal UV curing adhesives, suitable for paper, optical fiber and other substrates, high bonding strength

  4. 3D printing field - 3D printing photocurable resins, high initiation efficiency, improving printing molding speed and precision

  5. Optical fiber coating field - UV protective coatings for optical fiber surfaces, fast curing, good fit and excellent protective performance

Specifications Of IGM Omnirad TPO-L UV Photoinitiator

Appearance (25°C)Clear yellow liquid
Purity≥95.0%
Molecular Weight316.33 g/mol
Absorption Wavelength Range299nm, 366nm (characteristic peaks in methanol solution)
Solubility (20°C)Soluble in acetone, toluene, acrylate monomers; suitable
Density (20°C)1.1 g/cm³
Flash Point (CC)>100°C


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