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

BASF IRGACURE 651 Photoinitiator

BASF IRGACURE 651 is a Type I free-radical UV photoinitiator in the IRGACURE series, 2,2-dimethoxy-2-phenylacetophenone, white crystalline powder, high thermal stability, ideal for UV inks/varnishes/unsaturated polyester/styrene systems, compoundable with IRG 184/369 for enhanced curing efficiency, suitable for imaging/electronic applications.

Features Of BASF IRGACURE 651 Photoinitiator

  1. Efficient UV initiation - Rapid free-radical generation under UV, suitable for colored systems, improving curing speed and through-cure

  2. Good thermal stability - Thermally stable, easy-to-disperse powder, suitable for various film thicknesses

  3. Excellent compounding synergy - Compatible with most monomers/oligomers, compoundable for enhanced surface curing

  4. Good solubility - Suitable for most organic solvents/acrylate monomers, applicable to various viscosity systems

  5. Imaging/electronic compatibility - Suitable for photoresists/solder masks, ensuring fine-pattern curing, improving resolution

Typical Applications Of BASF IRGACURE 651 Photoinitiator

  1. UV-curable inks - Offset/screen inks, improving curing speed and surface curing, ideal for thin coats

  2. UV varnish systems - Clear varnishes, ensuring transparency and long-term weatherability, suitable for outdoor scenarios

  3. Unsaturated polyester systems - Topcoats/fillers on wood/wood substitutes, based on unsaturated polyester/styrene

  4. Photoresists - Ensuring imaging precision, suitable for printing plates/UV-curable resins

  5. Electronic solder masks - PCB solder masks, suitable for fine-pattern curing, improving adhesion/chemical resistance

Specifications Of BASF IRGACURE 651 Photoinitiator

BrandBASF
Chemical TypeType I free-radical UV photoinitiator (benzoin dimethyl ketal)
Chemical Name2,2-dimethoxy-2-phenylacetophenone
CAS No24650-42-8
Appearance (25℃)White crystalline powder
Molecular Weight256.3 g/mol
Melting Point64-67℃
Density (20℃)1.13g/cm³
Flash Point169.6℃
Absorption Peaks250nm, 340nm (in methanol)


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