TPGDA monomer: low volatility, highly flexible UV curing solution, reshaping the new standard of coatings and inks industry

Jul 01, 2025 Leave a message

In today's pursuit of environmentally friendly and efficient production, AM-321 (TPGDA) acrylate monomer is becoming an innovative choice in the coating and ink industry due to its low volatility, low viscosity and excellent film-forming properties. As a bifunctional active diluent, it significantly improves the flexibility of the paint film and the process economy while reducing the viscosity of the system, providing balanced performance support for industrial applications.

 

1. Core performance: Solve industry pain points with balanced characteristics
Triple low-sensitivity advantages

Low volatility: extremely low volatile organic compound (VOC) emissions, in line with environmental regulations, reducing health risks in the working environment.
Low viscosity (15cPa.s @25℃): effectively improve ink transfer, avoid printing ink flying and smudge defects, and improve batch stability of high color concentration systems.
Low odor: optimize production environment experience, suitable for confined space operations.
Dynamic performance balance

Flexible film formation: glass transition temperature (Tg) 48℃–62℃, giving the cured film moderate hardness and bending tolerance, solving the traditional pain point of "hard, brittle and easy to crack" of the coating.
Efficient dilution ability: excellent solubility in acrylic prepolymers, adding 10%-30% can significantly reduce the viscosity of the system and maintain the curing speed.

 


2. Application scenarios: Verification of effective value in multiple fields

Printing ink optimization

Offset printing/flexographic printing: Improve ink transferability, surface tension of 39 dynes/cm ensures substrate spreading permeability, and reduces composite process shrinkage.

Screen printing: Low volatility ensures the stability of high color concentration system and avoids the decrease of curing efficiency.

Environmentally friendly coating upgrade

Wood/plastic coating: Low shrinkage improves adhesion, and chemical resistance extends product life.

Electronic precision coating: Low volatility meets the requirements of electronic component packaging and avoids small molecule residual pollution.

Industrial economic breakthrough

Cost optimization: Reduce raw material costs compared with similar monomers, Gardner chroma ≤1 ensures that light-colored systems have no yellowing risk.

Process simplification: Wide resin compatibility (acid value <2mgKOH/g) reduces the complexity of formula debugging.

 

3. Industry Trends: Matching Sustainable Development Demand
As the global coatings market transitions to water-based and low-VOC, the environmentally friendly characteristics of AM-321 are highly consistent with the growth of the construction and automotive industries in the Asia-Pacific region:

Construction: The demand for weather-resistant coatings has surged, and the flexible paint film adapts to the thermal expansion and contraction of the substrate.
Automobile Manufacturing: Lightweight material coatings require both hardness and impact resistance, and TPGDA becomes a key additive.


4. Usage Guide: The key to maximizing performance
Storage: Store away from light below 25°C and use within 6 months after opening.
Ratio Optimization: When used in combination with a photoinitiator, the concentration must be verified in advance to avoid insufficient curing.

 

AM-321 TPGDA monomer redefines the value standard of industrial monomers with the "performance triangle" (environmental protection, flexibility, and economy). Its balanced physical and chemical parameters and multi-scenario adaptability provide coatings and ink companies with underlying technical support that is both sustainable and cost-effective, and promotes the industry to iterate towards efficient and green production.