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

IGM Omnirad 819DW UV Photoinitiator 液体

IGM Omnirad 819DW is a water-dispersible bis-acylphosphine oxide Type I free radical UV photoinitiator in the Omnirad® series, designed for UV radiation curing systems. Its core component is a water dispersion of 45% bis-acylphosphine oxide (BAPO). It can efficiently decompose to generate free radicals under UV light, quickly initiating the polymerization of acrylates and unsaturated oligomers

Features Of IGM Omnirad 819DW UV Photoinitiator

  1. High-efficiency Type I initiation - Bis-acylphosphine oxide structure, high initiation efficiency, excellent deep curing effect and fast curing speed

  2. Water-dispersible property - Can be directly dispersed in water, suitable for water-based UV systems, environmentally friendly without solvent pollution

  3. Good dispersion stability - Uniform and stable dispersion, not easy to stratify or agglomerate, long storage period and convenient metering addition

  4. Strong broad-spectrum adaptability - Suitable for water-based coatings and ink systems, compatible with various unsaturated prepolymers and vinyl monomers

  5. Thick-layer curing advantage - Can achieve thick-section curing, suitable for emulsion-type and 100% UV curing systems, stable performance

Typical Applications Of IGM Omnirad 819DW UV Photoinitiator

  1. Water-based UV coating field - Water-based wood and plastic coatings, uniform curing, improving coating wear resistance and gloss

  2. Water-based UV ink field - Water-based screen and flexo inks, suitable for paper and plastic substrates, environmentally friendly and odorless

  3. Prepreg system field - UV curing of fiber prepreg systems, suitable for impregnation treatment of wood and metal substrates

  4. Water-based varnish field - Water-based transparent varnishes, no yellowing after curing, maintaining high light transmittance and decorativeness

  5. Emulsion-type UV system - Emulsion-type UV curing products, achieving efficient curing, balancing environmental protection and performance need

Specifications Of IGM Omnirad 819DW UV Photoinitiator

ModelOmnirad 819DW
Brand & SeriesIGM (Omnirad® series)
Chemical TypeBis-acylphosphine oxide Type I free radical UV photoinitiator (water dispersion)
Chemical CompositionWater dispersion of 45% bis-acylphosphine oxide (BAPO)
AliasPhotoinitiator 819DW, Water-dispersible Photoinitiator 819
CAS No162881-26-7
Appearance (25°C)Pale yellow to yellow uniform dispersion
Active Ingredient Content45%±2%
Molecular Weight418.5 g/mol (bis-acylphosphine oxide component)
Density (20°C)1.05-1.15 g/cm³


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