Photoinitiator 1173 Supplier From China
CAS 7473-98-5 | Low Odor | Fast Surface Cure
Reliable Photoinitiator 1173 (2-Hydroxy-2-methylpropiophenone) alternative to Omnirad 1173 for coatings, inks and adhesives.
- Purity ≥ 98%
- Appearance: Colorless to pale yellow liquid
- Function: Type I free radical photoinitiator
- MOQ: Industrial batch supply available
- Sample: Available for formulation testing
- Fast Delivery
- Stable Supply from China
- Package: 20 kg drum / 25 kg drum
What is Photoinitiator 1173
Photoinitiator 1173, CAS 7473-98-5, is a Type I free radical UV photoinitiator known as 2-Hydroxy-2-methylpropiophenone. It is used in UV curing systems to generate radicals under UV light, initiating rapid polymerization in acrylate-based formulations. In industrial UV coatings, inks, and adhesives, Photoinitiator 1173 provides fast surface curing, good compatibility with standard oligomers, and stable processing performance in high-speed production lines.
Photoinitiator 1173 is widely selected by UV coating manufacturers, UV ink formulators, and adhesive producers because it balances curing speed and formulation stability in common UV-A wavelength systems (320–365 nm). UVIXE supplies Photoinitiator 1173 CAS 7473-98-5 with consistent industrial-grade quality for bulk production use.
| Technical Data Sheet – Photoinitiator 1173 | |
|---|---|
| Chemical Name | 2-Hydroxy-2-methylpropiophenone |
| CAS No. | 7473-98-5 |
| Molecular Formula | C10H12O2 |
| Molecular Weight | 164.2 g/mol |
| Appearance | Colorless to pale yellow liquid |
| Purity | ≥ 98% |
| Density (20°C) | ~1.08 g/cm³ |
| Boiling Point | ~105°C |
| UV Absorption Range | 320–365 nm |
| Solubility | Miscible with acrylate monomers and oligomers |
| Function | Type I free radical photoinitiator |
| Recommended Dosage | 1% – 4% |
| Storage Condition | Store in sealed container, dry place at 5–30°C |
| Shelf Life | 12 months |
Typical Applications of Photoinitiator
Photoinitiator 1173 (CAS 7473-98-5) is a Type I UV curing initiator designed for fast radical generation in industrial UV systems. UVIXE supplies Photoinitiator 1173 for coatings, inks, and adhesives manufacturers requiring stable curing speed, low yellowing performance, and reliable bulk production consistency.
You can select the right Photoinitiator 1173 grade based on your UV formulation type, substrate requirements, and curing speed target. Contact UVIXE for technical support and bulk quotation.
UV Coatings Applications of Photoinitiator 1173
Photoinitiator 1173 is widely used in UV coating systems requiring fast surface curing and stable film formation. It supports acrylic-based industrial coatings with good compatibility and low yellowing performance.
UV Curable Coatings for Wood
Photoinitiator 1173 for wood finishing UV systems with fast curing performance.
- Fast surface drying
- Smooth coating finish
- Low yellowing result
UV Resistant Clear Coat for Plastic
Used in plastic surface protection coatings with stable UV response.
- High transparency coating
- Strong adhesion on plastics
- Stable curing speed
UV Coating Glasses
Photoinitiator 1173 for UV coating glass surfaces with high transparency requirements.
- High optical clarity coating
- Low yellowing for glass applications
- Stable UV curing performance
UV Coating Paper
Photoinitiator 1173 used in UV coating paper and overprint varnish systems.
- Fast curing on paper substrates
- Good surface gloss control
- Compatible with printing systems
UV Coating for Metal
Photoinitiator 1173 applied in UV coating for metal protection systems.
- Strong adhesion on metal surface
- Fast curing for industrial coating lines
- Durable protective coating
UV Leather Coating
Photoinitiator 1173 used in UV leather coating for surface finishing systems.
- Flexible coating performance
- Smooth surface appearance
- Stable curing without cracking
UV Ink Applications of Photoinitiator 1173
UV Inks for Offset Printing
Fast curing UV ink system for paper and carton printing.
- High-speed drying
- Stable color density
- Low odor formulation
UV Inks for Flexo Printing
Used in packaging film printing UV systems.
- Strong film adhesion
- Fast production line speed
- Clear printing result
UV Screen Printing Ink
UV curing additive for specialty printing applications.
- Thick ink layer curing
- High surface hardness
- Industrial durability
UV Curable Adhesive Applications of Photoinitiator 1173
UV Acrylic Adhesive
Fast curing UV ink system for paper and carton printing.
- High-speed drying
- Stable color density
- Low odor formulation
UV Curing Optical Adhesive
Used in precision optical component assembly.
- High transparency bonding
- Low shrinkage system
- Stable UV reaction
UV Adhesive for Electronics
Used in PCB and electronic protection coatings.
- Fast encapsulation curing
- Strong insulation performance
- Heat resistance support
Why Buy Photoinitiator 1173 from UVIXE
- Standard Product Focus
- Stable Supply Support
- Fast Quotation
- Technical Documents Available
- MOQ: Flexible for business discussion
- Sample: Available upon request
- Documents: TDS / COA / SDS
- Export Support: Available for international B2B orders
Photoinitiator 1173 Equivalent to Leading Brands
UVIXE Photoinitiator 1173 can replace:
- Omnirad 1173
- Irgacure 1173
- Darocur 1173
✔ Same curing performance
✔ Stable quality
✔ More competitive pricing
Widely used by coatings and ink manufacturers worldwide.
FAQ of Photoinitiator 1173
What is Photoinitiator 1173 used for in UV curing systems?
Photoinitiator 1173 is used to initiate free radical polymerization in UV coatings, inks, and adhesives. Under UV light (320–365 nm), it generates radicals that start fast curing of acrylate-based systems.
Is Photoinitiator 1173 the same as Omnirad 1173?
Photoinitiator 1173 is the generic name, while Omnirad 1173 is a brand name. They refer to the same core chemical type with CAS No. 7473-98-5.
Can it be used as an alternative to Irgacure 1173?
Yes. Many buyers source it as an equivalent option when they need a more cost-effective supply solution.
Is Photoinitiator 1173 liquid or solid?
Photoinitiator 1173 is a liquid Type I photoinitiator. It blends easily into UV resin systems without pre-dissolution steps.
What is the recommended dosage of Photoinitiator 1173?
Typical usage is 1%–4% depending on coating thickness, UV lamp intensity, and formulation reactivity requirements.
Can Photoinitiator 184 or 1173 replace DMPA (Irgacure 651)?
In most mercury UV clear coating applications, yes. Photoinitiator 184 offers better solubility than DMPA/651 and equivalent or superior cure performance. Liquid 1173 eliminates the dissolution step entirely. Both are widely used as cost-effective, performance-equivalent alternatives to Irgacure 651 (CAS 24650-42-8).
Is Photoinitiator 1173 compatible with acrylate systems?
Yes, it has good compatibility with most acrylic monomers and oligomers used in industrial UV formulations.
What is the main advantage of Photoinitiator 1173?
Its main advantage is fast surface curing with relatively low yellowing in clear coating systems, making it suitable for high-quality finishing applications.
Related Photoinitiator Products
UVIXE provides a full range of UV photoinitiators designed for coatings, inks, and adhesive formulations. These products are selected to help formulators adjust curing depth, speed, and surface performance in different UV systems.
TPO Photoinitiator
Ideal for pigmented UV coatings and inks with strong curing performance.
Technical Support For Photoinitiator 1173
UVIXE provides technical support for Photoinitiator 1173 CAS 7473-98-5 used in UV coatings, inks, and adhesive systems. Support includes formulation guidance, dosage optimization, and compatibility checks with acrylate monomers and oligomers. Our technical team assists UV coating manufacturers, ink formulators, and adhesive producers in improving curing speed, reducing yellowing, and stabilizing production performance. For more formulation guidance, UV curing mechanism insights, and application optimization, you can access our technical blog resources or contact our application team directly for system-specific support.
Ready to Source Photoinitiator 1173?
- Fast response within 12 hours
- Free sample available
- Technical support for formulations