Trimethylolpropane trimethacrylate

Description of Trimethylolpropane trimethacrylate

Trimethylolpropane trimethacrylate (TMPTMA, CAS: 3290-92-4) is a trifunctional methacrylate crosslinker with the molecular formula C₁₈H₂₆O₆ and molecular weight of 338.40 g/mol. Hygroscopic and insoluble in water, it features a flash point above 110°C, ensuring safe handling in polymerization processes. As a reactive diluent, TMPTMA enhances mechanical strength, hardness, and chemical resistance in UV-curable inks, coatings, adhesives, and 3D printing resins.

Application of Trimethylolpropane trimethacrylate

Trimethylolpropane trimethacrylate (TMPTMA), a trifunctional crosslinking agent, is extensively used in UV-curable coatings, inks, and adhesives to enhance mechanical strength, chemical resistance, and adhesion properties, particularly in automotive clear coats and high-durability finishes. As a co-agent in PVC plastisols, elastomers, and molding compounds, it improves impact resistance, temperature stability, and hardness in solid surface resins and composites. In rubber applications, TMPTMA acts as a vulcanizer for EPDM and specialty elastomers, boosting tensile strength and abrasion resistance. It also supports polymer systems in electronics and biomedical devices for robust, low-volatility formulations.

Storage of Trimethylolpropane trimethacrylate

It should be kept in a cool, dry, dark place below 15°C to prevent moisture absorption and premature polymerization. Seal in airtight containers under an inert gas atmosphere, such as nitrogen, at 2-8°C for optimal stability. Avoid exposure to light, heat, or humidity. Room temperature is suitable for short-term use.