Photoinitiator 819 powder CAS 162881-26-7

Short Description:

Photoinitiator 819 can also be used for coloured UV curable plastic coating, UV coating has been widely used in plastic shell of various electronic and household appliances because of its excellent performance and efficient production.

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Product Detail

Product Tags

Description

Photoinitiator 819 is a versatile photoinitiator for radical polymerization of unsaturated resins upon UV light exposure. It is especially suitable for white pigmented Formulations, the curing of glass-fiber-reinforced polyester/styrene systems and for clear coats for outdoor use in combinations with light stabilizers. Thick section curing is also possible with this photoinitiator.

Specification:

Product Name	Photoinitiator 819; PI 819
Chemical Name	Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide
CAS Number	162881-26-7
Molecular Formula	C26H27O3P
Formula Weight	418.47
Appearance	Light yellow powder
Assay	99% min
Melting Point	131~135 ℃
Volatile Matter	0.3% max
Absorption	295nm , 370nm (in methanol solution)
Package	20kg/bag/drum, 25kg/bag/drum, or as you required
Storage	Stored in a dry and ventilated warehouse; keep away from sunshine; avoid fire; avoid moisture.
COA & MSDS	Available

Usage

Photoinitiator 819, also known as PI 819, can be used in colored UV-curable plastic coatings. UV coatings have been widely used in plastic housings of various electronic and home appliance products due to their excellent performance and efficient production, but UV coatings are added after coloring. Poor curing, resulting in poor adhesion of the coating film, and poor dispersion of the pigment by the UV resin, seriously affecting the appearance of the coating film, so the traditional construction process is first painted with a solvent-based colored primer for coloring, after baking Apply UV varnish to improve the physical properties of the paint film surface.