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Active amine photosensitizer

B-21

Product features:

B-21 is a photoinitiator containing a tertiary amine structure. It is benzene-free, has low coloration, and can exhibit a synergistic photoinitiation effect when used in combination with hydrogen-abstraction-type photoinitiators—such as benzophenone—thereby reducing oxygen inhibition, enhancing the photocuring rate of UV systems, and lowering the dosage of photoinitiators in colored systems.

Recommended use:

UV paper varnish, LED-UV varnish, UV offset/screen-printing inks, UV coatings for plastics and wood products, and more.

Shelf life:

Store at room temperature, sealed and protected from light. Shelf life: 6 months.

Packaging specifications:

200L packaging drum; 25L packaging drum.

Precautions:

None

TDS

TDS download:

B-21 Product Manual (Version 2024.11)

Download

Product Specifications:

Project	Indicator	Detection method
Appearance	Transparent liquid	Visually
Color (APHA)	≤100	GB/T 3143-1982 (Platinum-Cobalt Method)
Viscosity (cps/25℃)	60-110	GB/T 2794-2013
Acid value (mg KOH/g)	≤2.0	GB/T 6743-2008
Specific gravity (g/cm³) ³ )	0.97 ± 0.02	GB/T 6750-2007
Refractive index (25℃)	1.465 ± 0.005	GB/T 614-2006
Active ingredient (%)	100	Theoretical value
Functionality	2	Theoretical value