Bis(2,4,6-trimethylbenzoyl)phenylphosphine Oxide: Revolutionizing UV Curing for Demanding Applications
Discover the power of Photoinitiator 819, a state-of-the-art Type I free-radical photoinitiator engineered for superior performance in UV-curable systems. Ideal for challenging applications such as white and colored pigmented coatings, this chemical intermediate ensures rapid curing, exceptional UV resistance, and durable finishes. Explore how this advanced material can elevate your product formulations.
Get a Quote & SampleUnleash Superior Curing with Photoinitiator 819

Photoinitiator 819 (CAS: 162881-26-7)
As a premier supplier in China, we offer Bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide, a highly efficient photoinitiator crucial for UV curing. Its unique chemical structure enables rapid polymerization of unsaturated resins, making it a top choice for manufacturers seeking enhanced performance and cost-effectiveness. Explore our competitive pricing and reliable supply chain.
- Exceptional Performance in Pigmented Formulations: Achieve excellent curing results even in highly opaque white and colored coatings, a key advantage when you buy photoinitiator 819.
- Superior UV Yellowing Resistance: This photoinitiator provides excellent resistance to UV radiation, ensuring long-lasting color stability and aesthetic appeal in outdoor applications.
- Thick Section Curing Capability: Its broad absorption spectrum allows for effective curing of thicker layers, streamlining production processes for various industrial needs.
- Versatile Application Compatibility: This chemical intermediate is a preferred choice for those looking for a reliable UV curing photoinitiator manufacturer, compatible with various resin systems.
Key Advantages of Our Photoinitiator 819
Rapid and Deep Curing
Our Bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide ensures rapid surface and through-cure, critical for high-volume manufacturing. This efficiency makes it an ideal choice for businesses looking to optimize their production with a dependable supplier in China.
Excellent Light Stability
The product demonstrates outstanding UV absorption properties, contributing to excellent weatherability and minimal yellowing, a significant benefit when you need to purchase photoinitiator 819 for exterior coatings.
Broad Spectrum Absorption
With absorption peaks in the UV and visible light range, it's effective across various light sources and formulations, providing flexibility for different curing setups. Enquire about its CAS 162881-26-7 price for your specific project.
Diverse Applications for Photoinitiator 819
Coatings Industry
Ideal for wood coatings, plastic coatings, and metal coatings, especially in white and colored formulations where excellent curing and color stability are paramount.
Printing Inks
Used in various printing inks to achieve fast curing and high-quality prints, crucial for packaging and graphic arts applications.
Adhesives and Sealants
Enhances the performance of UV-curable adhesives and sealants, providing strong and durable bonds in diverse industrial applications.
3D Printing and Electronics
Valuable for applications requiring precise and rapid curing in 3D printing resins and electronic component assembly.