Tri(propylene glycol) diacrylate
CAS 42978-66-5
EC 256-032-2
Formula C15H24O6
MW 300.35 g/mol
Monomers & Building Blocks Coatings, Adhesives, Sealants & ElastomersPrinting & PackagingElectronicsPlastics & Polymers Polymerization InitiationCross-linking & CuringPlasticizer & Softener
Description
Tri(propylene glycol) diacrylate (TRPGDA, CAS 42978-66-5) is a difunctional acrylate monomer commercially available under trade names including SR 306, Sartomer 306, Chemlink 51, and Aronix M 220. It carries no E-code designation and is classified under HS code 29161290.
In UV- and EB-curable coatings, TRPGDA acts as a reactive diluent that reduces formulation viscosity while incorporating into the polymer network through dual acrylate groups, increasing cross-link density and improving film hardness. In adhesive and printing ink systems, it accelerates cure response and contributes flexibility to the cured matrix by virtue of its propylene glycol backbone.
TRPGDA is supplied as a liquid and is registered under REACH. Procurement teams should confirm supplier SDS documentation for classification under CLP Regulation (EC) No 1272/2008. The product is available from European distributors in standard drum and IBC formats, with technical and industrial grades offered depending on application requirements.
In UV- and EB-curable coatings, TRPGDA acts as a reactive diluent that reduces formulation viscosity while incorporating into the polymer network through dual acrylate groups, increasing cross-link density and improving film hardness. In adhesive and printing ink systems, it accelerates cure response and contributes flexibility to the cured matrix by virtue of its propylene glycol backbone.
TRPGDA is supplied as a liquid and is registered under REACH. Procurement teams should confirm supplier SDS documentation for classification under CLP Regulation (EC) No 1272/2008. The product is available from European distributors in standard drum and IBC formats, with technical and industrial grades offered depending on application requirements.
Physical Properties
| Boiling Point | >100 °C |
| Density | 1.03 g/mL at 25 °C(lit.) |
| Flash Point | >230 °F |
| Color | Colourless |
| Form | Oil |
| Water Solubility | 4g/L at 20℃ |
| Vapor Pressure | <0.01 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.45(lit.) |
Safety & Handling (Learn More)
Warning GHS07 GHS09
H
H315H317H319H335H411
P
P261P264P271P272P273P280P319P321P391P405P501P264+P265P302+P352P304+P340P332+P317P333+P317P337+P317P362+P364P403+P233P305+P351+P338
Trade & Regulatory
| HS Code | 29161290 |
| UN Number | 3082 |
| ADR Class | 9 |
| Packing Group | III |
| WGK (Germany) | 2 |
Other Names
Tripropylene Glycol Diacrylate2-[2-(2-prop-2-enoyloxypropoxy)propoxy]propyl prop-2-enoatetripropylene glycol diacrylate, mixture of isomersTPGDASR 306TRPGDAChemlink 51Aronix M 220Sartomer 306
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