TPGDA (Tripropylene Glycol Diacrylate) Reactive Thinner
CAS Number: 42978-66-5
TPGDA (Tripropylene Glycol Diacrylate) is a difunctional acrylate reactive thinner with low skin sensitization, fast UV cure response, and low odor, making it one of the most widely used reactive diluents in UV adhesive and coating applications. Its ether-containing backbone imparts flexibility and good adhesion to plastic substrates. TPGDA is favored in UV inkjet, flexographic printing inks, UV adhesives, and flexible coating formulations requiring low migration and reduced sensitization risk.
Technical Specifications
| color | ≤15 (APHA) |
| purity | ≥97% |
| viscosity | 10–15 mPa·s (25 °C) |
| appearance | Colorless liquid |
| inhibitorContent | 100–200 ppm MEHQ |
Applications
- UV inkjet and flexographic printing inks
- Reactive thinner in UV adhesive formulations
- UV-curable flexible coatings
- PSA and label adhesive formulations
- Low-migration UV food packaging inks
Key Features
- Low skin sensitization compared to HDDA
- Ether backbone improves flexibility and plastic adhesion
- Fast UV cure response
- Low odor for indoor printing and adhesive applications
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CAS Number
42978-66-5
Category
Adhesive / Sealant AdditivesAvailability
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