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High reactivity under long-wavelength UV-A and visible light (350–420 nm), enabling efficient curing with LED sources.
Low yellowing tendency, delivering excellent clarity and color stability in final cured films.
Good solubility in common acrylate monomers and oligomers, facilitating homogeneous formulation blending.
Reduced odor and volatility compared to traditional Type II photoinitiators, improving workplace safety and handling.
Excellent surface cure performance, even under inert or low-oxygen conditions, minimizing oxygen inhibition effects.
UV-curable inkjet inks for industrial and decorative printing.
LED-curable coatings for wood, plastic, and metal substrates.
3D printing resins (SLA/DLP) requiring high resolution and low shrinkage.
Optical adhesives and encapsulants for electronics and display assembly.
Flexible packaging inks with stringent migration compliance requirements.
| Chemical Type | Thioxanthone derivative (Type II photoinitiator) |
| Product Form | Powder |
| Appearance | Off-white to pale yellow crystalline powder |
| Primary Applications | UV/LED-curable coatings, inks, adhesives, and 3D printing resins |
| Key Features | Long-wavelength sensitivity, low yellowing, good solubility, low volatility |
| Benefits | Enables energy-efficient LED curing, improves film aesthetics, enhances formulation stability |
| Storage Conditions | Store in original container at 5–25 °C, protected from light and moisture |
| Regulatory Status | REACH registered; compliant with EU Directive 2009/48/EC for toy materials (upon formulation) |
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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
