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

BASF DAROCUR 1173 Photoinitiator

BASF DAROCUR 1173 is a Type I free-radical UV photoinitiator in the DAROCUR® series, 2-hydroxy-2-methyl-1-phenyl-1-propanone, colorless to pale yellow liquid, low-odor/non-yellowing, initiating polymerization under UV, ideal for UV-curable acrylic varnishes, water-based dispersions, flexo inks, electronic coatings, FDA-compliant for indirect food contact.

Features Of BASF DAROCUR 1173 Photoinitiator

  1. Efficient UV initiation - Rapid free-radical generation under UV, accelerating curing speed, shortening production cycle

  2. Excellent non-yellowing - Minimizes yellowing, ensuring long-term color stability, suitable for outdoor and light-colored systems

  3. Superior miscibility & compounding - Compatible with most monomers/oligomers, usable alone or with other photoinitiators

  4. Low odor & migration - Mild odor, low migration, suitable for food-contact compliant formulations

  5. Easy processing & stability - Liquid form, easy to add, pump and mix, consistent batch performance

Typical Applications Of BASF DAROCUR 1173 Photoinitiator

  1. UV-curable acrylic varnishes - For paper, metal, plastic surfaces, improving gloss and weather resistance

  2. Water-based UV dispersions - Suitable for water-based UV-curable coatings, ensuring curing efficiency and storage stability

  3. Flexo & screen inks - For packaging printing inks, enabling rapid curing and color stability

  4. Electronic coatings - For PCB solder masks, optical film coatings, ensuring fine-pattern curing

  5. Wood & plastic coatings - For UV-curable topcoats on furniture and plastic parts, enhancing non-yellowing

Specifications Of BASF DAROCUR 1173 Photoinitiator

BrandBASF
Chemical TypeType I free-radical UV photoinitiator (α-hydroxyalkylphenone)
Chemical Name2-hydroxy-2-methyl-1-phenyl-1-propanone
CAS No7473-98-5
Appearance (25℃)Colorless to pale yellow transparent liquid
Molecular Weight164.2 g/mol
Density (20℃)1.077 g/cm³
Melting Point4℃
Viscosity (20℃)25 mPa·s


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