Photoinitiator DETX

Photoinitiator DETX is a high-efficiency Type II photoinitiator widely used in UV curing and LED curing systems. Chemically known as 2,4-Diethylthioxanthone (CAS 82799-44-8), DETX is specifically designed for pigmented coatings, inks, and adhesives where deep curing performance and long-wavelength absorption are required.

Compared with standard photoinitiators, DETX provides improved curing efficiency in systems with high pigment loading, making it a preferred thioxanthone photoinitiator in industrial UV formulations.

Photoinitiator DETX is an efficient free radical photoinitiator with excellent light bleaching effect and high photoinitiation efficiency. When used in combination with photoinitiator 369 and photoinitiator 907, it enhances the light absorption performance and improves the curing efficiency. It is suitable for colorless and colored coatings, inks, adhesives, and is particularly suitable for deep curing of thick films. It leaves no residual substances on the white or high titanium white powder surface after complete curing. The general dosage is 0.3 - 3%.

Key Advantages of Photoinitiator DETX

• Excellent performance in pigmented UV systems
• Strong absorption in long wavelength UV range
• Improved depth curing compared to Type I photoinitiators
• Compatible with UV and LED curing technologies
• Widely used in industrial coatings and printing inks

Applications of Photoinitiator DETX:

• Used in UV-curable materials composed of unsaturated polyester, acrylic monomers, etc.
• It can be used in colorless or colored coatings, as well as in printing inks, wooden furniture, decorative paints and adhesives, etc.

Why Photoinitiator DETX is Important in UV Formulations

In modern UV curing systems, especially pigmented formulations, light penetration becomes a limiting factor. Photoinitiator DETX solves this by acting as a sensitizer in longer wavelength regions, making it one of the most reliable UV photoinitiators for pigmented systems.

Technical Specifications

• CAS No.:82799-44-8
• Chemical Name:2, 4-diethylthioanthrone
• Molecular Formula:C17H16OS
• Molecular Weight:268.3
• Appearance: Light yellow powder

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.