Suitable for low-odor light-curing systems, such as odorless and non-toxic packaging for paper and food packaging, low-odor wood varnishes, low-odor plastics, and applications in the 3C industry.
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CAS#: 2128-93-0
Lencolo 5034 is a highly efficient, low-odor Type II solid radical photoinitiator. Among structurally modified benzophenone-based low-odor photoinitiators, it offers relatively high initiation efficiency and is suitable for use in low-odor UV-curable applications.
Technical Data
| Molecular formula | C19H14O |
|---|---|
| Molecule Weight (g/mol) | 258.3 |
| Compostition | 4-Phenylbenzophenone |
| Appearance | Light yellow crystals |
| Melting point(ºC) | 99-101 |
| Purity (%) | ≥99 |
| Volatile content(%) | ≤0.5 |
| Ash content(%) | ≤0.1 |
| Absorption peak(nm) | 289 |
Applications
Suitable for low-odor light-curing systems, such as odorless and non-toxic packaging for paper and food packaging, low-odor wood varnishes, low-odor plastics, and applications in the 3C industry.
Recommended Usage
Solubility (20℃, g/100g)

Addition amount: 2~4% for film thickness 5~20mm; 2~6% for film thickness 2~200mm
Users are advised to determine the optimal addition level through preliminary testing
Storage Conditions
To prevent premature polymerization due to the high reactivity of this product, keep it tightly sealed and store away from heat sources and direct sunlight. It is recommended to maintain storage temperature below 30 °C. Unused product should be promptly resealed and must not be left open. Under ventilated conditions at 25 °C, the product has a safe storage period of 6 months. Available packaging: 20 kg per bag
Tips: Lencolo 5034 is a low-odor, high-efficiency photoinitiator suitable for low-odor UV-curable systems
Note: Technical data represents typical values only. In view of the differences in formulas, production process, conditions, all the above statements must be adjusted according to the actual situation, our company does not make any promises. Our company reserves the right to reform its products without prior notice of any changes.
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