1,1,1-Trimethylolpropane triacrylate
CAS 15625-89-5
EC 239-701-3
Formula C15H20O6
MW 296.32 g/mol
Monomers & Building Blocks Plastics & PolymersCoatings, Adhesives, Sealants & ElastomersPrinting & PackagingElectronicsPersonal Care & CosmeticsAutomotiveAerospace & DefenseRubber & Tire Cross-linking & CuringPolymerization InitiationFlavoring & Acidulant
Description
1,1,1-Trimethylolpropane Triacrylate (TMPTA, CAS 15625-89-5) is a trifunctional acrylate monomer commercially available under trade names including SR 351, Sartomer SR 351, Viscoat 295, NK Ester A-TMPT, and Monocizer TD 1500A. It carries no assigned E-code and is classified under HS code 29161290.
In UV- and EB-curable coatings, TMPTA functions as a reactive crosslinker, forming dense three-dimensional polymer networks that increase surface hardness and chemical resistance. In adhesive and sealant formulations, its three acrylate groups enable rapid free-radical polymerization, reducing cure times and improving cohesive strength. It also serves as a reactive diluent in printing inks, lowering viscosity without introducing non-reactive solvents.
TMPTA is supplied as an industrial-grade liquid and is subject to REACH registration requirements within the European Economic Area. Procurement teams should confirm supplier SDS documentation, inhibitor content, and packaging configurations, which typically range from drums to IBC containers, depending on volume requirements.
In UV- and EB-curable coatings, TMPTA functions as a reactive crosslinker, forming dense three-dimensional polymer networks that increase surface hardness and chemical resistance. In adhesive and sealant formulations, its three acrylate groups enable rapid free-radical polymerization, reducing cure times and improving cohesive strength. It also serves as a reactive diluent in printing inks, lowering viscosity without introducing non-reactive solvents.
TMPTA is supplied as an industrial-grade liquid and is subject to REACH registration requirements within the European Economic Area. Procurement teams should confirm supplier SDS documentation, inhibitor content, and packaging configurations, which typically range from drums to IBC containers, depending on volume requirements.
Physical Properties
| Melting Point | -66°C |
| Boiling Point | >200 °C |
| Density | 1.1 g/cm³ (approx) |
| Flash Point | >230 °F |
| Color | Colorless to Light yellow to Light orange |
| Form | Liquid |
| Water Solubility | Miscible with water. |
| Vapor Pressure | <0.01 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.474(lit.) |
| Log P | 4.35 at 20℃ |
Safety & Handling (Learn More)
Warning GHS07 GHS08 GHS09
H
H315H317H319H336H351H360H400H410
P
P203P261P264P271P272P273P280P318P319P321P391P405P501P264+P265P302+P352P304+P340P332+P317P333+P317P337+P317P362+P364P403+P233P305+P351+P338
Trade & Regulatory
| HS Code | 29161290 |
| WGK (Germany) | 1 |
Other Names
Trimethylolpropane triacrylate2,2-bis(prop-2-enoyloxymethyl)butyl prop-2-enoateTMPTASR 351Viscoat 295NK Ester A-TMPTSartomer SR 351Monocizer TD 1500A
Related Products
Raw Materials
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