Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

IGM Omnirad 4PBZ UV Photoinitiator固体

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

Features Of IGM Omnirad 4PBZ UV Photoinitiator

  1. Benzophenone Type II initiation - High free radical initiation efficiency, can quickly initiate the polymerization of unsaturated oligomers, stable curing

  2. Broad-spectrum adaptability - Compatible with various acrylate systems, suitable for solvent-based and water-based UV curing formulations, strong versatility

  3. Benzene-free environmental protection - Benzene-free formula, meets high-end environmental compliance, suitable for sensitive application scenarios

  4. Easy processing and storage - Solid form easy to store and transport, easy to add and mix, no complex process adjustment needed

  5. Multi-scenario adaptation - Suitable for transparent and colored systems, no impact on the appearance and core performance of end products

Typical Applications Of IGM Omnirad 4PBZ UV Photoinitiator

  1. Printing ink field - Offset, screen, flexo inks and overprint varnishes, fast curing, high printing precision

  2. Wood coating field - Wood UV varnishes/colored paints, strong adhesion, scratch resistance, improving wood decoration durability

  3. Plastic coating field - UV protective coatings for plastic surfaces, good fit, excellent weather resistance and chemical resistance

  4. Paper coating field - Paper UV curing coatings, high efficiency curing, improving paper surface gloss and wear resistance

  5. UV adhesive field - Acrylate-based UV adhesives, high bonding strength, fast curing speed, suitable for general bonding

Specifications Of IGM Omnirad 4PBZ UV Photoinitiator

BrandIGM (Omnirad® series)
Chemical TypeBenzophenone Type II free radical UV photoinitiator
Alias4-Phenylbenzophenone, p-Phenylbenzophenone, Photoinitiator PBZ
CAS No2128-93-0
Appearance (25℃)Grayish white crystalline powder
Purity≥98.5%
Molecular Weight242.32g/mol
Melting Point99-103℃
Absorption Wavelength Range250-360nm (in methanol)


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