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

IGM Omnirad 81 UV Photoinitiator固体

IGM Omnirad 81 is a high-efficiency compound benzophenone Type II free radical UV photoinitiator in the Omnirad series, designed for UV radiation curing systems. Scientifically compounded by benzophenone and 4-methylbenzophenone, it combines the advantages of both. It can efficiently decompose to generate free radicals when exposed to UV light, quickly initiating the polymerization of acrylates and unsaturated oligomers

Features Of IGM Omnirad 81 UV Photoinitiator

  1. Compound synergistic effect - Compounded by benzophenone and 4-methylbenzophenone, initiation efficiency is better than single component, more stable curing

  2. Broad-spectrum UV absorption - Wide UV absorption range, suitable for various UV light sources, applicable to both colored and transparent systems

  3. Multi-system compatibility - Suitable for solvent-based UV formulations, compatible with various acrylate systems, extremely versatile

  4. Easy solid control - Crystalline solid form, easy to weigh, store and transport, accurate addition, no complex process needed

  5. High cost-performance advantage - Controllable cost of compound formula, stable performance, balancing high efficiency and economy

Typical Applications Of IGM Omnirad 81 UV Photoinitiator

  1. Printing ink field - Offset, screen, flexo inks and overprint varnishes, fast curing, high printing precision

  2. Wood coating field - Wood UV varnishes/colored paints, strong adhesion, improving wood decoration durability and gloss

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

  4. Paper coating field - Paper UV curing coatings, high efficiency curing, enhancing paper surface wear resistance and gloss

  5. UV adhesive field - Universal acrylate UV adhesives, high bonding strength, suitable for conventional bonding scenarios

Specifications Of IGM Omnirad 81 UV Photoinitiator

BrandIGM (Omnirad® series)
Chemical TypeCompound benzophenone Type II free radical UV photoinitiator
CAS NoConfidential
Appearance (25℃)White to off-white crystalline solid
Purity≥98.0%
Molecular WeightMixed molecular weight (Benzophenone 182.22g/mol
Melting Point70-78℃
Absorption Wavelength Range250-350nm (in methanol)


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