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Highly efficient Type II photoinitiator with excellent reactivity under UV-A and visible light (365–405 nm).
Low yellowing tendency, delivering superior clarity and color stability in final cured films.
Good solubility in common acrylate monomers and oligomers, enabling homogeneous formulation integration.
Reduced migration potential due to high molecular weight and low volatility.
Compatible with both free-radical and hybrid (radical/cationic) photopolymerization systems.
UV-curable coatings for wood, plastic, and metal substrates.
Inkjet inks requiring low-odor, high-gloss, and rapid cure performance.
3D printing resins (SLA/DLP) demanding high resolution and minimal post-cure shrinkage.
Optical adhesives and encapsulants where transparency and long-term UV stability are critical.
Electronics encapsulation and conformal coatings requiring low ionic impurities and high dielectric strength.
| Chemical Type | Bisacylphosphine oxide (BAPO) |
| Product Form | Powder |
| Appearance | White to off-white crystalline powder |
| Primary Applications | UV/visible-light curable coatings, inks, adhesives, and 3D printing resins |
| Key Features | Type II photoinitiator, long-wavelength sensitive, low yellowing |
| Benefits | Fast surface cure, excellent depth of cure, low odor, good compatibility |
| Storage Conditions | Store in original container at 5–25°C, protect from light and moisture |
| Regulatory Status | REACH registered; not classified as hazardous per GHS (as supplied) |
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
