CAS 162881-26-7 Photoinitiator 819-Professional supplier
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We can supply Photoinitiator 819(CAS:162881-26-7) with lowest factory price,high quality and regular basis.
Specification of Photoinitiator 819
| Item | Specifications |
| Appearance | Pale yellow powder |
| Assay | ≥99.0% |
| Melting point | 131～135℃ |
| Volatile matter | ≤0.3% |
| Clarity | Clear |
More About Photoinitiator 819
CAS: 162881-26-7
Standard: Technical grade
Content: 99%
Production Capacity:200MT/month
Loading port: Shanghai
Synonyms: Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, BAPO
MF: C26H27O3P
Usage Of Photoinitiator 819
Photoinitiator 819 is a highly efficient bisacylphosphine oxide (BAPO) photoinitiator, widely used in UV/LED curing systems. Its core applications are as follows:
1. UV/LED Curing of Thick Film Systems
◦ Ideal for curing thick, pigmented, or opaque coatings (e.g., white, black, or colored inks/paints), as its broad absorption spectrum (up to ~450 nm) enables deep light penetration and full through-curing.
◦ Commonly used in UV-curable screen inks, offset inks, and flexographic inks for printing on plastics, paper, and metal substrates.
2. Industrial Coatings & Adhesives
◦ Used in UV-curable wood coatings, metal coatings, and plastic coatings, providing fast surface and deep curing even with high pigment loads.
◦ Applied in UV-curable structural adhesives and sealants for electronics, automotive, and aerospace applications, where fast, low-temperature curing is required.
3. 3D Printing & Additive Manufacturing
◦ A key component in UV-curable resins for stereolithography (SLA) and digital light processing (DLP) 3D printing, enabling high-speed curing of complex, thick parts with good mechanical properties.
4. LED Curing Applications
◦ Compatible with long-wavelength UV and LED light sources (365–420 nm), making it suitable for modern LED curing systems in printing, coatings, and electronics assembly.
5. Overprint Varnishes & Clear Coatings
◦ Used in clear overprint varnishes (OPVs) and high-gloss coatings, providing excellent surface cure, scratch resistance, and weatherability when combined with light stabilizers.
Package Of Photoinitiator 819
25kg/box or according to the customers’ demand
Storage: Stored in the dry and ventilated inside storeroom, prevent direct sunlight, slightly pile and put down.
Photoinitiator serious products
| Product name | CAS |
| Photoinitiator TPO /Speedcure TPO | 75980-60-8 |
| Photoinitiator 819 /IRGACURE 819 | 162881-26-7 |
| lrgacure 907/Photoinitiator 907 | 71868-10-5 |
| Photoinitiator TPO-L | 84434-11-7 |
| Photoinitiator MBF/Methyl benzoylformate | 15206-55-0 |
| Photoinitiator ITX/SPEEDCURE ITX | 5495-84-1 |
| Photoinitiator DETX/Speedcure DETX | 82799-44-8 |
| Photoinitiator 307 | 94576-68-8 |
| Photoinitiator 184 /lrgacure 184 | 947-19-3 |
| BDK /Benzil dimethyl ketal /lrgacure 651 | 24650-42-8 |
| lrgacure 1173/Darocur 1173 | 7473-98-5 |
| 4-Fluorobenzophenone/p-Fluorobenzophenone | 345-83-5 |
| Photoinitiator CBP | 134-85-0 |
| Photoinitiator EDB /SPEEDCURE EDB | 10287-53-3 |
| Speecure 2959/lrgacure 2959 | 106797-53-9 |
| Photoinitiator 369 /lrgacure 369 | 119313-12-1 |
| Photoinitiator OMBB | 606-28-0 |
| UV Photoinitiator EMK / Photoinitiator EAB | 90-93-7 |
| Photoinitiator 784 | 125051-32-3 |
| Photoinitiator EMK/Photoinitiator EAB | 90-93-7 |
| Photoinitiator 754 | 211510-16 |
