Triethylene glycol dimethacrylate

Triethylene glycol dimethacrylate (CAS 109-16-0), also known as TEGDMA or Tedma, is a bifunctional methacrylate monomer used as a reactive crosslinker and diluent in UV- and peroxide-cured polymer systems.

Where is Triethylene glycol dimethacrylate used?

• Dental composites and restorative materials: reactive diluent
• UV-curable coatings and inks: increases crosslink density, improving scratch resistance and adhesion to plastics and metals
• Structural adhesives and anaerobic sealants: controls cure speed and enhances mechanical strength
• Acrylic and methacrylic polymer formulations: comonomer for tight control over network architecture
• It bridges polymer chains during cure, improving hardness, chemical resistance, and dimensional stability.

Commercial specifications

• Clear liquid, typically in drum and IBC quantities
• Purity grades suitable for dental and medical device applications are available
• Specialized grades may be supplied with documentation for regulatory compliance