IGM Omnirad 4PBZ is a high-efficiency benzophenone Type II free radical UV photoinitiator in the Omnirad series, designed for UV radiation curing systems. As an efficient Type II initiator, it can efficiently initiate the free radical polymerization of acrylates and other unsaturated oligomers when exposed to UV light. Benzene-free, environmentally friendly and highly compatible, it is suitable for various UV curing formulations, balancing processing convenience and curing stability
Benzophenone Type II initiation - High free radical initiation efficiency, can quickly initiate the polymerization of unsaturated oligomers, stable curing
Broad-spectrum adaptability - Compatible with various acrylate systems, suitable for solvent-based and water-based UV curing formulations, strong versatility
Benzene-free environmental protection - Benzene-free formula, meets high-end environmental compliance, suitable for sensitive application scenarios
Easy processing and storage - Solid form easy to store and transport, easy to add and mix, no complex process adjustment needed
Multi-scenario adaptation - Suitable for transparent and colored systems, no impact on the appearance and core performance of end products
Printing ink field - Offset, screen, flexo inks and overprint varnishes, fast curing, high printing precision
Wood coating field - Wood UV varnishes/colored paints, strong adhesion, scratch resistance, improving wood decoration durability
Plastic coating field - UV protective coatings for plastic surfaces, good fit, excellent weather resistance and chemical resistance
Paper coating field - Paper UV curing coatings, high efficiency curing, improving paper surface gloss and wear resistance
UV adhesive field - Acrylate-based UV adhesives, high bonding strength, fast curing speed, suitable for general bonding
| Brand | IGM (Omnirad® series) |
| Chemical Type | Benzophenone Type II free radical UV photoinitiator |
| Alias | 4-Phenylbenzophenone, p-Phenylbenzophenone, Photoinitiator PBZ |
| CAS No | 2128-93-0 |
| Appearance (25℃) | Grayish white crystalline powder |
| Purity | ≥98.5% |
| Molecular Weight | 242.32g/mol |
| Melting Point | 99-103℃ |
| Absorption Wavelength Range | 250-360nm (in methanol) |
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