Trimethylolpropane Triacrylate (TMPTA) CAS 15625-89-5 Product Introduction Trimethylolpropane Triacrylate (TMPTA) is a high-performance trifunctional acrylic monomer widely used in UV-curable coatings, inks, adhesives, and resin formulations. With the CAS number 15625-89-5, this chemical features three reactive acrylate groups that enable rapid polymerization under UV light or electron beam radiation. TMPTA delivers excellent crosslinking density, resulting in coatings with