Tripropylene glycol diacrylate
CAS Number
42978-66-5
EC Number
256-032-2
Abbreviation
TPGDA
What is Tripropylene glycol diacrylate?
Tripropylene glycol diacrylate (CAS 42978-66-5), abbreviated TPGDA, is a difunctional acrylate monomer used as a reactive diluent and crosslinker in UV- and EB-curable systems.
Where is Tripropylene glycol diacrylate used?
- UV-curable coatings and inks: lowers formulation viscosity without solvent addition
- Adhesives and sealants: crosslinking monomer improving cohesive strength and flexibility, effective in pressure-sensitive and structural systems
- Electronics: conformal coatings and encapsulants where controlled crosslink density is critical to substrate adhesion and dielectric performance
- Plastics and polymer compounding: reactive plasticizer that integrates into the polymer matrix during cure rather than migrating
- It reduces viscosity in formulations while contributing to the cured polymer network.
Good to know: Some suppliers offer inhibited grades with controlled hydroquinone monomethyl ether levels for storage stability during transport and long-term warehouse storage.
Commercial specifications
- Technical and industrial grades, specifications aligned to monomer purity standards
- Drum and IBC quantities
Other Names (Synonyms)
2-[2-(2-prop-2-enoyloxypropoxy)propoxy]propyl prop-2-enoate|Tri(propylene glycol) diacrylate|TPGDA
What are the physical properties of Tripropylene glycol diacrylate?
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.)
How is Tripropylene glycol diacrylate classified and handled safely? Learn More
Warning
GHS07· Irritant GHS09· Environmental Hazard
Hazard Statements
H315 Causes skin irritation
H317 May cause an allergic skin reaction
H319 Causes serious eye irritation
H335 May cause respiratory irritation
H411 Toxic to aquatic life with long lasting effects
Precautionary Statements
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P272 Contaminated work clothing should not be allowed out of the workplace.
Which trade and regulatory codes apply to Tripropylene glycol diacrylate?
HS Code 29161290
UN Number 3082
ADR Class 9
Packing Group III
WGK (Germany) 2