Highly efficient Type II photoinitiator with excellent reactivity under UV-A and visible light (365–405 nm).
Low yellowing tendency, delivering superior color stability in final cured films.
Good solubility in common acrylate monomers and oligomers, enabling homogeneous formulation blending.
Reduced odor and low volatility compared to traditional benzophenone-based initiators.
Compatible with amine synergists for enhanced surface cure and reduced oxygen inhibition.
UV-curable coatings for wood, plastic, and metal substrates.
Inkjet inks requiring low migration and high print fidelity.
3D printing resins (SLA/DLP) demanding precise depth control and minimal post-cure yellowing.
Optical adhesives and encapsulants where clarity and long-term UV stability are critical.
Overprint varnishes and decorative laminating adhesives for packaging.
| Chemical Type | Thioxanthone derivative |
| Product Form | Pale yellow to light amber crystalline powder |
| Appearance | Free-flowing crystalline solid |
| Primary Applications | UV/LED-curable coatings, inks, adhesives, and 3D printing resins |
| Key Features | Type II photoinitiator, visible-light active, low migration |
| Benefits | Improved through-cure, reduced surface tack, enhanced yellowing resistance |
| Solubility | Good in acrylates, methacrylates, and reactive diluents; limited in water |
| Storage Conditions | Store in original container at 15–25°C, protected from light and moisture |
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E-mail: wangxingqiang@ericwchem.com
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