Neopentyl Glycol Diacrylate with CAS 2223-82-7
What is Neopentyl glycol diacrylate?
Neopentyl Glycol Diacrylate (NPGDA), also known as 2,2-dimethyl-1,3-propanediol diacrylate, is a bifunctional reactive monomer derived from neopentyl glycol. With two acrylate groups per molecule, it acts as both a reactive diluent and a crosslinking agent in UV and electron-beam (EB) curing formulations.
NPGDA delivers an excellent balance of low viscosity, fast cure speed, and strong mechanical properties. Its neopentyl backbone imparts superior hydrolytic stability, low volatility, and reduced skin irritation potential compared to many other diacrylates—making it a preferred choice for high-performance industrial formulations.
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Product Advantages
- Fast UV Cure Speed: Dual acrylate functionality enables rapid radical polymerization, reducing cure time and boosting throughput in UV coating lines.
- Low Viscosity: With ~9 mPa·s at 25°C, NPGDA effectively reduces system viscosity without VOC concerns, making it ideal as a reactive diluent.
- Excellent Crosslink Density: Bifunctionality creates dense crosslinked networks, resulting in superior hardness, chemical resistance, and abrasion resistance in cured films.
- Hydrolytic Stability: The neopentyl backbone resists hydrolysis better than standard diacrylates, ensuring long-term durability in humid or aqueous environments.
Neopentyl Glycol Diacrylate Quick details
- Chemical Name:Neopentyl glycol diacrylate
- CAS No.: 2223-82-7
- EINECS: 218-741-5
- Molecular Formula: C11H16O4
- Molecular weight: 212.24
- Appearance:Clear liquid
- Purity:97%
- Synonyms:2,2-Dimethylpropane-1,3-diyldiacrylate;2,2-dimethylpropane-1,3-dioldiacrylate;2,2-Dimethylpropanediacrylate;2,2-dimethyltrimethyleneacrylate;2-PropeChemicalbooknoicacid,2,2-dimethyl-1,3-propanediylester;NEOPENTYLGLYCOLDIACRYLATE;1,3-BIS(ACRYLOYLOXY)-2,2-DIMETHYLPROPANE;2,2-DIMETHYL-1,3-PROPANEDIOLDIACRYLATE;Neopentyl glycol diacrylate;NPGDA
Neopentyl Glycol Diacrylate Typical Properties
| Item | Specification | Results |
| Appearance | Clear liquid | Conforms |
| Ester content | ≥97% | 98.62% |
| Acid value(mg（KOH）/g) | ≤0.5 | 0.10 |
| Viscosity(25℃ cps) | 5-15 | 6 |
| Color(APHA) | ≤50 | 30 |
| Moisture | ≤0.2 | 0.02 |
| INHIBITOR(MEHQ ppm) | ≤500 | 310 |
| Conclusion | The results conforms with enterprise standards | |
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Neopentyl Glycol Diacrylate Applications
- NPGDA is a bifunctional functional monomer with good phase depth with acrylic prepolymers. It has strong dilution, good wear resistance, and scratch resistance. It can be used as an active diluent for radiation cured coatings, inks, adhesives, and photosensitive resin plates.
- In UV-curable coatings, NPGDA is valued for its fast curing speed and ability to form highly crosslinked networks.
- In the printing industry, NPGDA is a key component of UV-curable inks.
- PGDA is also widely used in adhesives, particularly in UV-curable formulations.
Neopentyl Glycol Diacrylate Package & Storage
- Package: 200kg/drum
- Storage: Store in a cool place and keep it sealed to avoid direct sunlight.
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