Pale Yellow Powder Photoinitiator 819 Used For UV Curing Varnish
Photoinitiator 819 is an efficient photoinitiator, which can
provide excellent curing effect and anti-yellowing performance.
Product Name:Bis(2,4,6-trimethylbenzoyl) phenylphosphine Oxide
Molecular Formula:C26 H27O3 P
Molecular Weight:418.46
CAS number:162881-26-7
Specification Benzophenone
| Test Item | 819 |
| Appearance | Pale yellow powder |
Melting point | 127-135°C |
Purity (HPLC,%) | ≥98% |
Loss on Drying (%) | ≤0.50 |
Application
819 has been tested for UV-curing varnish and paint systems, such
as wood, paper, metal, plastic, fiber optics,printing inks and
prepreg systems.
In opaque white and tinted furniture, the very low added amount of
819 provides excellent cure and yellowing resistance. Moreover, the
excellent absorption properties of 819 make it suitable for deep
curing.
819 can be used with other photoinitiators for use in glass fiber
reinforced materials.
Due to its photosensitivity in the long wavelength band, 819 can be
used with UV absorbers.
Storage
Keep in a tightly closed container and store in a cool, dry, dark,
ventilated area. Effective from the date of production,within one
year.
Package
Packed into 20Kg/drum
