Trimethylolpropane triacrylate (TMPTA)

Description

1. Product Overview
   Trimethylolpropane triacrylate (TMPTA) is a high-functionality trifunctional acrylate monomer widely used in radiation curing and advanced polymer systems. It serves as a critical reactive diluent and crosslinking agent in UV-curable formulations, enabling rapid polymerization and superior film performance. Its primary industrial use spans coatings, inks, adhesives, and high-performance resin systems requiring fast cure speeds and enhanced durability. TMPTA delivers exceptional crosslink density, making it strategically important for manufacturers seeking efficiency, throughput optimization, and high-end material performance in competitive global markets.
2. Key Specifications & Technical Characteristics

• Chemical composition: Trimethylolpropane triacrylate (TMPTA), multifunctional acrylate ester
• CAS Number: 15625-89-5
• Purity level: ≥ 95% (industrial grade), ≥ 97% (high-purity grade available)
• Physical form: Clear, colorless to light yellow liquid
• Odor: Mild acrylate odor
• Viscosity: ~80–120 mPa·s (25°C)
• Density: ~1.05–1.07 g/cm³ (25°C)
• Functionality: Tri-functional acrylate (high crosslinking capability)
• Packaging options: 200 kg steel/plastic drums, 1,000 kg IBC totes
• Shelf life: 6–12 months under recommended storage conditions (cool, dry, UV-protected)

3. Core Industrial Applications
   TMPTA is extensively used in UV-curable and radiation-curable systems across multiple high-value industries. In coatings, it enables fast curing, high hardness, and excellent chemical resistance for wood finishes, automotive coatings, and industrial surfaces. In inks and printing, it enhances rapid drying, gloss retention, and adhesion on diverse substrates. Adhesive formulations benefit from its strong crosslinking density, improving bond strength and thermal stability. It is also widely applied in electronics encapsulation, optical materials, and advanced 3D printing resins, where precision curing and mechanical integrity are critical. Compared to lower-functionality monomers, TMPTA delivers superior hardness, faster cure rates, and enhanced durability, reducing processing time and improving production efficiency.
4. Competitive Advantages
   TMPTA offers high functionality that enables superior crosslink density and rapid UV curing performance, positioning it as a premium choice for advanced polymer systems. It ensures batch-to-batch consistency, supporting stable production outcomes in high-volume manufacturing environments. Supply reliability is reinforced through scalable production capacity and efficient global logistics networks. Its cost-to-performance ratio is highly competitive, reducing total formulation cost by improving curing efficiency and reducing energy consumption. Environmentally, it supports low-VOC and solvent-free systems, aligning with global sustainability regulations. Comprehensive technical documentation and formulation support are available to accelerate customer integration and product development cycles.
5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): BULK 20 MT
• Loading capacity: 20–21 MT per 20-foot container (depending on packaging configuration and regional shipping regulations)