FM-373 is the fastest-curing monofunctional methoxy acrylate UV monomer available on the market today. Engineered for superior performance under low-energy conditions, this innovative monomer achieves film formation and curing speeds that exceed those of trifunctional acrylate monomers such as TMPTA - delivering exceptional reactivity without the high shrinkage typically associated with multifunctional monomers.
With outstanding curing performance under LED light sources, FM-373 produces bright, glossy, and dry-to-touch films. Its extremely low viscosity and minimal volumetric shrinkage make it an ideal choice for demanding applications including planar printing, 3D printing, UV coatings, inkjet inks, adhesives, and UV inks.
Key Features & Benefits
| Feature | Benefit |
|---|---|
| Fastest-curing monofunctional acrylate | Outperforms TMPTA and other trifunctional monomers under low-energy conditions |
| Excellent LED curability | Optimized for modern LED light sources - energy-efficient and cost-effective |
| Extremely low viscosity (5 cPs at 25°C) | Rapidly reduces formulation viscosity; easy to handle and process |
| Low volumetric shrinkage | Maintains dimensional stability; ideal for high-precision applications |
| Tough, strong film properties | Delivers durability in both planar and 3D printing applications |
| Bright, dry-to-touch finish | Superior surface aesthetics with immediate tack-free results |
Technical Specifications
| Property | Value |
|---|---|
| Tg (°C) | 5 |
| Functionality | 1 |
| Surface Tension (Dynes) | 35 |
| Colour (Gardner) | 2 |
| Refractive Index | 1.450 |
| Acid Value (mg KOH/g) | max. 1 |
| Viscosity at 25°C (cPs) | 5 |
Applications
UV Coatings
FM-373 maintains the low shrinkage characteristic of monofunctional monomers while delivering a relatively high crosslinking density and outstanding fast-curing capability. Recommended as the primary monomer in solvent-free UV coatings, it rapidly reduces formulation viscosity and enhances curing performance under low film thickness and low-energy conditions.
Key advantages:
Low shrinkage for dimensional stability
High crosslinking density for durability
Exceptional speed for high-throughput production lines
UV Inkjet
Formulated as a primary film-forming component, FM-373 is fully compatible with LED light sources and enables direct printing onto a wide range of substrates and coated surfaces. It delivers superior overall surface performance including excellent adhesion, gloss, and mechanical properties.
Ideal for:
LED-inkjet printing systems
Direct-to-substrate printing
High-speed industrial inkjet applications
UV Adhesives
FM-373 is recommended as a blend component in UV adhesive formulations. Its low shrinkage becomes especially pronounced at higher adhesive layer thicknesses, ensuring strong bond integrity without distortion. The monomer cures rapidly and exhibits excellent weatherability for long-term durability.
Key benefits:
Low shrinkage in thick bond lines
Fast curing for increased throughput
Weather-resistant bonds
UV Inks
When used as an auxiliary component in UV ink formulations, FM-373 provides strong diluting power and promotes adhesion to various substrates. Recommended as the primary dissolving monomer for pure acrylic resins, it enhances ink flow, pigment wetting, and overall print quality.
Perfect for:
Screen printing inks
Flexographic inks
High-performance industrial inks
Intermiscibility
FM-373 offers exceptional compatibility across a wide range of formulation components:
| Category | Compatibility |
|---|---|
| Monomers | Excellent solubility with all types of monomers |
| Solvents | Fully compatible with all conventional organic solvents |
| Polymers | Fully compatible with pure acrylic, polyester, epoxy, and acrylic resins - formulation adjustments can be made according to application requirements |
Packaging
| Container | Size |
|---|---|
| Drum | 200 kg |
| Pail | 20 kg |
Why Choose FM-373?
Unmatched curing speed - faster than trifunctional acrylates under low energy
LED-optimized - ideal for modern, energy-efficient curing systems
Low viscosity - simplifies formulation and improves processability
Low shrinkage - maintains precision in high-tolerance applications
Versatile - performs across coatings, inks, adhesives, and 3D printing
Excellent compatibility - works with a broad range of resins and solvents
Contact Us
For technical data sheets, samples, or formulation support, please contact our team today.
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