Photoinitiator 907 is an efficient free radical photoinitiator that can be used alone or in combination with other photoinitiators. Its unique high absorption and non-yellowing properties result in excellent curing speed and effect.
When used in combination with photoinitiator ITX and photoinitiator 184, it enhances light absorption and improves curing efficiency. It is suitable for offset inks, screen inks, solder mask inks, paper inks, plastic inks, metal inks, especially for colored systems curing, particularly for blue system curing. The general dosage is 1-5%.
Applications of Photoinitiator 907:
Used in colored ink systems, paper/metal and plastic varnishes and electronic inks. It can also be used as an ultraviolet absorber in industries such as cosmetics.
Typical Applications
- Graphic arts - Suitable for UV-curable inks, overprint varnishes, and other printed coatings that need fast cure response.
- Industrial coatings - Used in wood, plastic, and metal coating systems where UV curing helps improve throughput.
- Adhesives & electronics - Relevant in UV-curable adhesives and electronics applications where controlled radical curing is required.
Formulation Notes
- Photoinitiator 907 is a useful option when a formulary needs efficient UV response in acrylate systems. For best results, formulation decisions should consider coating thickness,pigment load, lamp type, conveyor speed, and desired surface-versus-through cure balance.
- Because photoinitiator selection depends on the full formulation package, production trials are recommended before scale-up. Matching the initiator to the resin, monomer blend, and curing hardware is often more important than choosing by name alone.
Technical Specifications
- CAS No.:71868-10-5
- Chemical Name:2-methyl-1 -(4-methylthiophenyl) -2-morpholin-1-acetone
- Molecular Formula:C15H21NO2S
- Molecular Weight:279.3
- Other Name:Irgacure 907,Omnirad 907
- Appearance: White powder
Melting Point | 72-75℃ |
Purity | ≥99% |
Loss On Drying | ≤0.2% |
Density | 1.19g/cm3 |
Flash point | 207.9℃ |
Absorption wavelength | 231nm,307nm |
Package:
25KG cartons
Storage and Transportation:
- Keep container tightly closed and dry and storage in cool place.
- Attention should be paid to avoiding light during production, manufacturing, storage and transportation.
What is Photoinitiator 907?
Photoinitiator 907 is a Type I UV photoinitiator used to start free-radical polymerization in UV-curable systems, especially unsaturated prepolymers such as acrylates.
Are Irgacure 907 and Omnirad 907 the same product?
They are commonly used as search terms for the same photoinitiator family and should be treated as the key aliases on a product page to capture more relevant search traffic.
What are the key technical values for Photoinitiator 907?
The verified values shown here are CAS 71868-10-5, molecular weight 279.4 g/mol, melting point 73–76 °C, and UV absorption at 231 and 307 nm.
Which industries commonly use Photoinitiator 907?
Official product literature places it in graphic arts, wood coatings, plastic coatings, metal coatings, electronics, adhesives, and UV LED-related applications.
